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Finding the Fourth Proportional to 520,232.43, 778,386.45 and 307,116.27

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Solution

The fourth proportional to 520,232.43, 778,386.45 and 307,116.27 is: 459,516.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,232.43 : 778,386.45 = 307,116.27 : x
  2. Step 2: Convert to fraction form
    520,232.43/778,386.45 = 307,116.27/x
  3. Step 3: Cross multiply
    520,232.43x = 778,386.45 × 307,116.27
  4. Step 4: Simplify right side
    520,232.43x = 239,055,143,142.54
  5. Step 5: Solve for x
    x = 239,055,143,142.54/520,232.43
  6. Step 6: Final answer
    x = 459,516.03

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.