Home / 735,442.40-1,015,028.60-687,415.88

Finding the Fourth Proportional to 735,442.40, 1,015,028.60 and 687,415.88

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Solution

The fourth proportional to 735,442.40, 1,015,028.60 and 687,415.88 is: 948,744.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    735,442.40 : 1,015,028.60 = 687,415.88 : x
  2. Step 2: Convert to fraction form
    735,442.40/1,015,028.60 = 687,415.88/x
  3. Step 3: Cross multiply
    735,442.40x = 1,015,028.60 × 687,415.88
  4. Step 4: Simplify right side
    735,442.40x = 697,746,778,294.17
  5. Step 5: Solve for x
    x = 697,746,778,294.17/735,442.40
  6. Step 6: Final answer
    x = 948,744.29

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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.