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Finding the Fourth Proportional to 539,471.52, 744,722.64 and 313,073.28

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Solution

The fourth proportional to 539,471.52, 744,722.64 and 313,073.28 is: 432,187.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,471.52 : 744,722.64 = 313,073.28 : x
  2. Step 2: Convert to fraction form
    539,471.52/744,722.64 = 313,073.28/x
  3. Step 3: Cross multiply
    539,471.52x = 744,722.64 × 313,073.28
  4. Step 4: Simplify right side
    539,471.52x = 233,152,759,595.06
  5. Step 5: Solve for x
    x = 233,152,759,595.06/539,471.52
  6. Step 6: Final answer
    x = 432,187.34

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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.