Home / 728,869.52-1,005,841.44-406,571.24

Finding the Fourth Proportional to 728,869.52, 1,005,841.44 and 406,571.24

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Solution

The fourth proportional to 728,869.52, 1,005,841.44 and 406,571.24 is: 561,069.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,869.52 : 1,005,841.44 = 406,571.24 : x
  2. Step 2: Convert to fraction form
    728,869.52/1,005,841.44 = 406,571.24/x
  3. Step 3: Cross multiply
    728,869.52x = 1,005,841.44 × 406,571.24
  4. Step 4: Simplify right side
    728,869.52x = 408,946,201,504.19
  5. Step 5: Solve for x
    x = 408,946,201,504.19/728,869.52
  6. Step 6: Final answer
    x = 561,069.15

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Double scale
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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.