Home / 722,977.20-1,084,465.80-687,985.20

Finding the Fourth Proportional to 722,977.20, 1,084,465.80 and 687,985.20

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Solution

The fourth proportional to 722,977.20, 1,084,465.80 and 687,985.20 is: 1,031,977.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,977.20 : 1,084,465.80 = 687,985.20 : x
  2. Step 2: Convert to fraction form
    722,977.20/1,084,465.80 = 687,985.20/x
  3. Step 3: Cross multiply
    722,977.20x = 1,084,465.80 × 687,985.20
  4. Step 4: Simplify right side
    722,977.20x = 746,096,420,306.16
  5. Step 5: Solve for x
    x = 746,096,420,306.16/722,977.20
  6. Step 6: Final answer
    x = 1,031,977.80

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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.