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Finding the Fourth Proportional to 539,871.29, 745,022.37 and 313,531.37

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Solution

The fourth proportional to 539,871.29, 745,022.37 and 313,531.37 is: 432,673.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,871.29 : 745,022.37 = 313,531.37 : x
  2. Step 2: Convert to fraction form
    539,871.29/745,022.37 = 313,531.37/x
  3. Step 3: Cross multiply
    539,871.29x = 745,022.37 × 313,531.37
  4. Step 4: Simplify right side
    539,871.29x = 233,587,880,621.64
  5. Step 5: Solve for x
    x = 233,587,880,621.64/539,871.29
  6. Step 6: Final answer
    x = 432,673.28

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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.