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Finding the Fourth Proportional to 502,184.80, 693,134.58 and 287,448.94

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Solution

The fourth proportional to 502,184.80, 693,134.58 and 287,448.94 is: 396,747.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,184.80 : 693,134.58 = 287,448.94 : x
  2. Step 2: Convert to fraction form
    502,184.80/693,134.58 = 287,448.94/x
  3. Step 3: Cross multiply
    502,184.80x = 693,134.58 × 287,448.94
  4. Step 4: Simplify right side
    502,184.80x = 199,240,800,298.35
  5. Step 5: Solve for x
    x = 199,240,800,298.35/502,184.80
  6. Step 6: Final answer
    x = 396,747.97

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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.