Home / 711,700.40-1,067,550.60-680,985.20

Finding the Fourth Proportional to 711,700.40, 1,067,550.60 and 680,985.20

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Solution

The fourth proportional to 711,700.40, 1,067,550.60 and 680,985.20 is: 1,021,477.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,700.40 : 1,067,550.60 = 680,985.20 : x
  2. Step 2: Convert to fraction form
    711,700.40/1,067,550.60 = 680,985.20/x
  3. Step 3: Cross multiply
    711,700.40x = 1,067,550.60 × 680,985.20
  4. Step 4: Simplify right side
    711,700.40x = 726,986,158,851.12
  5. Step 5: Solve for x
    x = 726,986,158,851.12/711,700.40
  6. Step 6: Final answer
    x = 1,021,477.80

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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.