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Finding the Fourth Proportional to 545,335.92, 752,368.76 and 315,767.88

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Solution

The fourth proportional to 545,335.92, 752,368.76 and 315,767.88 is: 435,646.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,335.92 : 752,368.76 = 315,767.88 : x
  2. Step 2: Convert to fraction form
    545,335.92/752,368.76 = 315,767.88/x
  3. Step 3: Cross multiply
    545,335.92x = 752,368.76 × 315,767.88
  4. Step 4: Simplify right side
    545,335.92x = 237,573,886,744.59
  5. Step 5: Solve for x
    x = 237,573,886,744.59/545,335.92
  6. Step 6: Final answer
    x = 435,646.87

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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.