Home / 723,825.20-1,086,774.60-408,897.20

Finding the Fourth Proportional to 723,825.20, 1,086,774.60 and 408,897.20

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Solution

The fourth proportional to 723,825.20, 1,086,774.60 and 408,897.20 is: 613,931.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,825.20 : 1,086,774.60 = 408,897.20 : x
  2. Step 2: Convert to fraction form
    723,825.20/1,086,774.60 = 408,897.20/x
  3. Step 3: Cross multiply
    723,825.20x = 1,086,774.60 × 408,897.20
  4. Step 4: Simplify right side
    723,825.20x = 444,379,090,971.12
  5. Step 5: Solve for x
    x = 444,379,090,971.12/723,825.20
  6. Step 6: Final answer
    x = 613,931.50

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Similar ratio
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1.5x scale

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.