Home / 880,930.28-1,215,651.30-478,513.64

Finding the Fourth Proportional to 880,930.28, 1,215,651.30 and 478,513.64

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Solution

The fourth proportional to 880,930.28, 1,215,651.30 and 478,513.64 is: 660,331.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,930.28 : 1,215,651.30 = 478,513.64 : x
  2. Step 2: Convert to fraction form
    880,930.28/1,215,651.30 = 478,513.64/x
  3. Step 3: Cross multiply
    880,930.28x = 1,215,651.30 × 478,513.64
  4. Step 4: Simplify right side
    880,930.28x = 581,705,728,533.73
  5. Step 5: Solve for x
    x = 581,705,728,533.73/880,930.28
  6. Step 6: Final answer
    x = 660,331.18

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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.