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Finding the Fourth Proportional to 439,766.80, 606,892.84 and 258,476.08

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Solution

The fourth proportional to 439,766.80, 606,892.84 and 258,476.08 is: 356,705.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,766.80 : 606,892.84 = 258,476.08 : x
  2. Step 2: Convert to fraction form
    439,766.80/606,892.84 = 258,476.08/x
  3. Step 3: Cross multiply
    439,766.80x = 606,892.84 × 258,476.08
  4. Step 4: Simplify right side
    439,766.80x = 156,867,282,263.27
  5. Step 5: Solve for x
    x = 156,867,282,263.27/439,766.80
  6. Step 6: Final answer
    x = 356,705.60

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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.