Home / 728,156.93-1,090,906.80-406,635.13

Finding the Fourth Proportional to 728,156.93, 1,090,906.80 and 406,635.13

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Solution

The fourth proportional to 728,156.93, 1,090,906.80 and 406,635.13 is: 609,210.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,156.93 : 1,090,906.80 = 406,635.13 : x
  2. Step 2: Convert to fraction form
    728,156.93/1,090,906.80 = 406,635.13/x
  3. Step 3: Cross multiply
    728,156.93x = 1,090,906.80 × 406,635.13
  4. Step 4: Simplify right side
    728,156.93x = 443,601,024,183.74
  5. Step 5: Solve for x
    x = 443,601,024,183.74/728,156.93
  6. Step 6: Final answer
    x = 609,210.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.