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Finding the Fourth Proportional to 718,974.60, 992,272.82 and 413,050.40

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Solution

The fourth proportional to 718,974.60, 992,272.82 and 413,050.40 is: 570,060.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,974.60 : 992,272.82 = 413,050.40 : x
  2. Step 2: Convert to fraction form
    718,974.60/992,272.82 = 413,050.40/x
  3. Step 3: Cross multiply
    718,974.60x = 992,272.82 × 413,050.40
  4. Step 4: Simplify right side
    718,974.60x = 409,858,687,486.07
  5. Step 5: Solve for x
    x = 409,858,687,486.07/718,974.60
  6. Step 6: Final answer
    x = 570,060.04

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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.