Home / 970,622.80-1,455,934.20-687,187.60

Finding the Fourth Proportional to 970,622.80, 1,455,934.20 and 687,187.60

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Solution

The fourth proportional to 970,622.80, 1,455,934.20 and 687,187.60 is: 1,030,781.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,622.80 : 1,455,934.20 = 687,187.60 : x
  2. Step 2: Convert to fraction form
    970,622.80/1,455,934.20 = 687,187.60/x
  3. Step 3: Cross multiply
    970,622.80x = 1,455,934.20 × 687,187.60
  4. Step 4: Simplify right side
    970,622.80x = 1,000,499,928,655.92
  5. Step 5: Solve for x
    x = 1,000,499,928,655.92/970,622.80
  6. Step 6: Final answer
    x = 1,030,781.40

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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.