Home / 542,928.71-748,624.31-346,430.87

Finding the Fourth Proportional to 542,928.71, 748,624.31 and 346,430.87

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Solution

The fourth proportional to 542,928.71, 748,624.31 and 346,430.87 is: 477,680.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,928.71 : 748,624.31 = 346,430.87 : x
  2. Step 2: Convert to fraction form
    542,928.71/748,624.31 = 346,430.87/x
  3. Step 3: Cross multiply
    542,928.71x = 748,624.31 × 346,430.87
  4. Step 4: Simplify right side
    542,928.71x = 259,346,565,541.17
  5. Step 5: Solve for x
    x = 259,346,565,541.17/542,928.71
  6. Step 6: Final answer
    x = 477,680.70

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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.