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Finding the Fourth Proportional to 539,386.28, 744,032.40 and 348,512.24

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Solution

The fourth proportional to 539,386.28, 744,032.40 and 348,512.24 is: 480,739.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,386.28 : 744,032.40 = 348,512.24 : x
  2. Step 2: Convert to fraction form
    539,386.28/744,032.40 = 348,512.24/x
  3. Step 3: Cross multiply
    539,386.28x = 744,032.40 × 348,512.24
  4. Step 4: Simplify right side
    539,386.28x = 259,304,398,356.58
  5. Step 5: Solve for x
    x = 259,304,398,356.58/539,386.28
  6. Step 6: Final answer
    x = 480,739.70

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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.