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Finding the Fourth Proportional to 587,415.30, 880,138.80 and 502,778.40

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Solution

The fourth proportional to 587,415.30, 880,138.80 and 502,778.40 is: 753,325.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,415.30 : 880,138.80 = 502,778.40 : x
  2. Step 2: Convert to fraction form
    587,415.30/880,138.80 = 502,778.40/x
  3. Step 3: Cross multiply
    587,415.30x = 880,138.80 × 502,778.40
  4. Step 4: Simplify right side
    587,415.30x = 442,514,777,641.92
  5. Step 5: Solve for x
    x = 442,514,777,641.92/587,415.30
  6. Step 6: Final answer
    x = 753,325.25

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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.