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Finding the Fourth Proportional to 526,864.97, 790,064.18 and 378,498.89

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Solution

The fourth proportional to 526,864.97, 790,064.18 and 378,498.89 is: 567,580.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,864.97 : 790,064.18 = 378,498.89 : x
  2. Step 2: Convert to fraction form
    526,864.97/790,064.18 = 378,498.89/x
  3. Step 3: Cross multiply
    526,864.97x = 790,064.18 × 378,498.89
  4. Step 4: Simplify right side
    526,864.97x = 299,038,413,266.27
  5. Step 5: Solve for x
    x = 299,038,413,266.27/526,864.97
  6. Step 6: Final answer
    x = 567,580.75

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.