Home / 1,120,225.76-1,545,850.08-636,723.80

Finding the Fourth Proportional to 1,120,225.76, 1,545,850.08 and 636,723.80

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Solution

The fourth proportional to 1,120,225.76, 1,545,850.08 and 636,723.80 is: 878,643.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,225.76 : 1,545,850.08 = 636,723.80 : x
  2. Step 2: Convert to fraction form
    1,120,225.76/1,545,850.08 = 636,723.80/x
  3. Step 3: Cross multiply
    1,120,225.76x = 1,545,850.08 × 636,723.80
  4. Step 4: Simplify right side
    1,120,225.76x = 984,279,537,167.90
  5. Step 5: Solve for x
    x = 984,279,537,167.90/1,120,225.76
  6. Step 6: Final answer
    x = 878,643.91

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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.