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Finding the Fourth Proportional to 695,470.80, 959,977.80 and 408,977.04

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Solution

The fourth proportional to 695,470.80, 959,977.80 and 408,977.04 is: 564,522.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,470.80 : 959,977.80 = 408,977.04 : x
  2. Step 2: Convert to fraction form
    695,470.80/959,977.80 = 408,977.04/x
  3. Step 3: Cross multiply
    695,470.80x = 959,977.80 × 408,977.04
  4. Step 4: Simplify right side
    695,470.80x = 392,608,879,109.71
  5. Step 5: Solve for x
    x = 392,608,879,109.71/695,470.80
  6. Step 6: Final answer
    x = 564,522.45

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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.