Home / 892,707.80-1,338,798.86-487,434.83

Finding the Fourth Proportional to 892,707.80, 1,338,798.86 and 487,434.83

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Solution

The fourth proportional to 892,707.80, 1,338,798.86 and 487,434.83 is: 731,008.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,707.80 : 1,338,798.86 = 487,434.83 : x
  2. Step 2: Convert to fraction form
    892,707.80/1,338,798.86 = 487,434.83/x
  3. Step 3: Cross multiply
    892,707.80x = 1,338,798.86 × 487,434.83
  4. Step 4: Simplify right side
    892,707.80x = 652,577,192,291.12
  5. Step 5: Solve for x
    x = 652,577,192,291.12/892,707.80
  6. Step 6: Final answer
    x = 731,008.73

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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.