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Finding the Fourth Proportional to 570,720.71, 785,802.08 and 484,500.97

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Solution

The fourth proportional to 570,720.71, 785,802.08 and 484,500.97 is: 667,089.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,720.71 : 785,802.08 = 484,500.97 : x
  2. Step 2: Convert to fraction form
    570,720.71/785,802.08 = 484,500.97/x
  3. Step 3: Cross multiply
    570,720.71x = 785,802.08 × 484,500.97
  4. Step 4: Simplify right side
    570,720.71x = 380,721,869,988.02
  5. Step 5: Solve for x
    x = 380,721,869,988.02/570,720.71
  6. Step 6: Final answer
    x = 667,089.63

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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.