Home / 1,108,142.80-1,662,214.20-360,264.40

Finding the Fourth Proportional to 1,108,142.80, 1,662,214.20 and 360,264.40

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Solution

The fourth proportional to 1,108,142.80, 1,662,214.20 and 360,264.40 is: 540,396.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,142.80 : 1,662,214.20 = 360,264.40 : x
  2. Step 2: Convert to fraction form
    1,108,142.80/1,662,214.20 = 360,264.40/x
  3. Step 3: Cross multiply
    1,108,142.80x = 1,662,214.20 × 360,264.40
  4. Step 4: Simplify right side
    1,108,142.80x = 598,836,601,434.48
  5. Step 5: Solve for x
    x = 598,836,601,434.48/1,108,142.80
  6. Step 6: Final answer
    x = 540,396.60

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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.