Home / 880,690.59-1,215,359.24-478,282.59

Finding the Fourth Proportional to 880,690.59, 1,215,359.24 and 478,282.59

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Solution

The fourth proportional to 880,690.59, 1,215,359.24 and 478,282.59 is: 660,033.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,690.59 : 1,215,359.24 = 478,282.59 : x
  2. Step 2: Convert to fraction form
    880,690.59/1,215,359.24 = 478,282.59/x
  3. Step 3: Cross multiply
    880,690.59x = 1,215,359.24 × 478,282.59
  4. Step 4: Simplify right side
    880,690.59x = 581,285,162,696.22
  5. Step 5: Solve for x
    x = 581,285,162,696.22/880,690.59
  6. Step 6: Final answer
    x = 660,033.35

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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.