Home / 917,557.40-1,376,336.10-728,600.60

Finding the Fourth Proportional to 917,557.40, 1,376,336.10 and 728,600.60

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Solution

The fourth proportional to 917,557.40, 1,376,336.10 and 728,600.60 is: 1,092,900.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,557.40 : 1,376,336.10 = 728,600.60 : x
  2. Step 2: Convert to fraction form
    917,557.40/1,376,336.10 = 728,600.60/x
  3. Step 3: Cross multiply
    917,557.40x = 1,376,336.10 × 728,600.60
  4. Step 4: Simplify right side
    917,557.40x = 1,002,799,308,261.66
  5. Step 5: Solve for x
    x = 1,002,799,308,261.66/917,557.40
  6. Step 6: Final answer
    x = 1,092,900.90

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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.