Home / 1,078,761.80-1,618,337.10-447,739.40

Finding the Fourth Proportional to 1,078,761.80, 1,618,337.10 and 447,739.40

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Solution

The fourth proportional to 1,078,761.80, 1,618,337.10 and 447,739.40 is: 671,689.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,761.80 : 1,618,337.10 = 447,739.40 : x
  2. Step 2: Convert to fraction form
    1,078,761.80/1,618,337.10 = 447,739.40/x
  3. Step 3: Cross multiply
    1,078,761.80x = 1,618,337.10 × 447,739.40
  4. Step 4: Simplify right side
    1,078,761.80x = 724,593,282,151.74
  5. Step 5: Solve for x
    x = 724,593,282,151.74/1,078,761.80
  6. Step 6: Final answer
    x = 671,689.79

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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.