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Finding the Fourth Proportional to 570,283.13, 787,166.10 and 328,727.16

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Solution

The fourth proportional to 570,283.13, 787,166.10 and 328,727.16 is: 453,744.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,283.13 : 787,166.10 = 328,727.16 : x
  2. Step 2: Convert to fraction form
    570,283.13/787,166.10 = 328,727.16/x
  3. Step 3: Cross multiply
    570,283.13x = 787,166.10 × 328,727.16
  4. Step 4: Simplify right side
    570,283.13x = 258,762,876,501.28
  5. Step 5: Solve for x
    x = 258,762,876,501.28/570,283.13
  6. Step 6: Final answer
    x = 453,744.57

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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.