Home / 728,849.52-1,005,813.84-406,551.24

Finding the Fourth Proportional to 728,849.52, 1,005,813.84 and 406,551.24

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Solution

The fourth proportional to 728,849.52, 1,005,813.84 and 406,551.24 is: 561,041.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,849.52 : 1,005,813.84 = 406,551.24 : x
  2. Step 2: Convert to fraction form
    728,849.52/1,005,813.84 = 406,551.24/x
  3. Step 3: Cross multiply
    728,849.52x = 1,005,813.84 × 406,551.24
  4. Step 4: Simplify right side
    728,849.52x = 408,914,863,861.16
  5. Step 5: Solve for x
    x = 408,914,863,861.16/728,849.52
  6. Step 6: Final answer
    x = 561,041.55

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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.