Home / 880,690.46-1,215,352.76-498,791.05

Finding the Fourth Proportional to 880,690.46, 1,215,352.76 and 498,791.05

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Solution

The fourth proportional to 880,690.46, 1,215,352.76 and 498,791.05 is: 688,331.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,690.46 : 1,215,352.76 = 498,791.05 : x
  2. Step 2: Convert to fraction form
    880,690.46/1,215,352.76 = 498,791.05/x
  3. Step 3: Cross multiply
    880,690.46x = 1,215,352.76 × 498,791.05
  4. Step 4: Simplify right side
    880,690.46x = 606,207,073,748.46
  5. Step 5: Solve for x
    x = 606,207,073,748.46/880,690.46
  6. Step 6: Final answer
    x = 688,331.60

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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.