Home / 884,397.20-1,220,331.45-497,140.85

Finding the Fourth Proportional to 884,397.20, 1,220,331.45 and 497,140.85

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Solution

The fourth proportional to 884,397.20, 1,220,331.45 and 497,140.85 is: 685,977.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,397.20 : 1,220,331.45 = 497,140.85 : x
  2. Step 2: Convert to fraction form
    884,397.20/1,220,331.45 = 497,140.85/x
  3. Step 3: Cross multiply
    884,397.20x = 1,220,331.45 × 497,140.85
  4. Step 4: Simplify right side
    884,397.20x = 606,676,619,249.84
  5. Step 5: Solve for x
    x = 606,676,619,249.84/884,397.20
  6. Step 6: Final answer
    x = 685,977.55

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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.