Home / 787,545.64-1,084,525.77-684,132.40

Finding the Fourth Proportional to 787,545.64, 1,084,525.77 and 684,132.40

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Solution

The fourth proportional to 787,545.64, 1,084,525.77 and 684,132.40 is: 942,115.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,545.64 : 1,084,525.77 = 684,132.40 : x
  2. Step 2: Convert to fraction form
    787,545.64/1,084,525.77 = 684,132.40/x
  3. Step 3: Cross multiply
    787,545.64x = 1,084,525.77 × 684,132.40
  4. Step 4: Simplify right side
    787,545.64x = 741,959,217,891.95
  5. Step 5: Solve for x
    x = 741,959,217,891.95/787,545.64
  6. Step 6: Final answer
    x = 942,115.83

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1.5x scale

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.