Home / 849,451.38-1,172,242.56-467,478.18

Finding the Fourth Proportional to 849,451.38, 1,172,242.56 and 467,478.18

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Solution

The fourth proportional to 849,451.38, 1,172,242.56 and 467,478.18 is: 645,119.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,451.38 : 1,172,242.56 = 467,478.18 : x
  2. Step 2: Convert to fraction form
    849,451.38/1,172,242.56 = 467,478.18/x
  3. Step 3: Cross multiply
    849,451.38x = 1,172,242.56 × 467,478.18
  4. Step 4: Simplify right side
    849,451.38x = 547,997,818,467.34
  5. Step 5: Solve for x
    x = 547,997,818,467.34/849,451.38
  6. Step 6: Final answer
    x = 645,119.70

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.