Home / 849,516.69-1,274,233.52-316,996.20

Finding the Fourth Proportional to 849,516.69, 1,274,233.52 and 316,996.20

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Solution

The fourth proportional to 849,516.69, 1,274,233.52 and 316,996.20 is: 475,478.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,516.69 : 1,274,233.52 = 316,996.20 : x
  2. Step 2: Convert to fraction form
    849,516.69/1,274,233.52 = 316,996.20/x
  3. Step 3: Cross multiply
    849,516.69x = 1,274,233.52 × 316,996.20
  4. Step 4: Simplify right side
    849,516.69x = 403,927,183,752.62
  5. Step 5: Solve for x
    x = 403,927,183,752.62/849,516.69
  6. Step 6: Final answer
    x = 475,478.81

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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.