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Finding the Fourth Proportional to 415,045.60, 572,739.44 and 245,295.52

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Solution

The fourth proportional to 415,045.60, 572,739.44 and 245,295.52 is: 338,493.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,045.60 : 572,739.44 = 245,295.52 : x
  2. Step 2: Convert to fraction form
    415,045.60/572,739.44 = 245,295.52/x
  3. Step 3: Cross multiply
    415,045.60x = 572,739.44 × 245,295.52
  4. Step 4: Simplify right side
    415,045.60x = 140,490,418,759.31
  5. Step 5: Solve for x
    x = 140,490,418,759.31/415,045.60
  6. Step 6: Final answer
    x = 338,493.94

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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.