Home / 880,678.38-1,215,336.14-498,778.97

Finding the Fourth Proportional to 880,678.38, 1,215,336.14 and 498,778.97

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Solution

The fourth proportional to 880,678.38, 1,215,336.14 and 498,778.97 is: 688,314.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,678.38 : 1,215,336.14 = 498,778.97 : x
  2. Step 2: Convert to fraction form
    880,678.38/1,215,336.14 = 498,778.97/x
  3. Step 3: Cross multiply
    880,678.38x = 1,215,336.14 × 498,778.97
  4. Step 4: Simplify right side
    880,678.38x = 606,184,108,112.98
  5. Step 5: Solve for x
    x = 606,184,108,112.98/880,678.38
  6. Step 6: Final answer
    x = 688,314.96

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Double scale
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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.