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Finding the Fourth Proportional to 552,019.57, 761,787.38 and 306,998.91

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Solution

The fourth proportional to 552,019.57, 761,787.38 and 306,998.91 is: 423,658.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,019.57 : 761,787.38 = 306,998.91 : x
  2. Step 2: Convert to fraction form
    552,019.57/761,787.38 = 306,998.91/x
  3. Step 3: Cross multiply
    552,019.57x = 761,787.38 × 306,998.91
  4. Step 4: Simplify right side
    552,019.57x = 233,867,895,311.76
  5. Step 5: Solve for x
    x = 233,867,895,311.76/552,019.57
  6. Step 6: Final answer
    x = 423,658.70

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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.