Home / 880,887.42-1,215,647.19-498,908.70

Finding the Fourth Proportional to 880,887.42, 1,215,647.19 and 498,908.70

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Solution

The fourth proportional to 880,887.42, 1,215,647.19 and 498,908.70 is: 688,506.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,887.42 : 1,215,647.19 = 498,908.70 : x
  2. Step 2: Convert to fraction form
    880,887.42/1,215,647.19 = 498,908.70/x
  3. Step 3: Cross multiply
    880,887.42x = 1,215,647.19 × 498,908.70
  4. Step 4: Simplify right side
    880,887.42x = 606,496,959,221.55
  5. Step 5: Solve for x
    x = 606,496,959,221.55/880,887.42
  6. Step 6: Final answer
    x = 688,506.78

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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.