Home / 1,187,356.80-1,781,035.20-477,019.20

Finding the Fourth Proportional to 1,187,356.80, 1,781,035.20 and 477,019.20

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Solution

The fourth proportional to 1,187,356.80, 1,781,035.20 and 477,019.20 is: 715,528.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,356.80 : 1,781,035.20 = 477,019.20 : x
  2. Step 2: Convert to fraction form
    1,187,356.80/1,781,035.20 = 477,019.20/x
  3. Step 3: Cross multiply
    1,187,356.80x = 1,781,035.20 × 477,019.20
  4. Step 4: Simplify right side
    1,187,356.80x = 849,587,986,275.84
  5. Step 5: Solve for x
    x = 849,587,986,275.84/1,187,356.80
  6. Step 6: Final answer
    x = 715,528.80

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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.