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Finding the Fourth Proportional to 569,041.18, 785,275.60 and 310,919.97

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Solution

The fourth proportional to 569,041.18, 785,275.60 and 310,919.97 is: 429,068.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,041.18 : 785,275.60 = 310,919.97 : x
  2. Step 2: Convert to fraction form
    569,041.18/785,275.60 = 310,919.97/x
  3. Step 3: Cross multiply
    569,041.18x = 785,275.60 × 310,919.97
  4. Step 4: Simplify right side
    569,041.18x = 244,157,862,155.57
  5. Step 5: Solve for x
    x = 244,157,862,155.57/569,041.18
  6. Step 6: Final answer
    x = 429,068.88

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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.