Home / 1,123,308.80-1,684,963.20-324,616.40

Finding the Fourth Proportional to 1,123,308.80, 1,684,963.20 and 324,616.40

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Solution

The fourth proportional to 1,123,308.80, 1,684,963.20 and 324,616.40 is: 486,924.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,308.80 : 1,684,963.20 = 324,616.40 : x
  2. Step 2: Convert to fraction form
    1,123,308.80/1,684,963.20 = 324,616.40/x
  3. Step 3: Cross multiply
    1,123,308.80x = 1,684,963.20 × 324,616.40
  4. Step 4: Simplify right side
    1,123,308.80x = 546,966,688,116.48
  5. Step 5: Solve for x
    x = 546,966,688,116.48/1,123,308.80
  6. Step 6: Final answer
    x = 486,924.60

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.