Home / 1,119,141.20-1,679,100.60-488,507.60

Finding the Fourth Proportional to 1,119,141.20, 1,679,100.60 and 488,507.60

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Solution

The fourth proportional to 1,119,141.20, 1,679,100.60 and 488,507.60 is: 732,931.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,141.20 : 1,679,100.60 = 488,507.60 : x
  2. Step 2: Convert to fraction form
    1,119,141.20/1,679,100.60 = 488,507.60/x
  3. Step 3: Cross multiply
    1,119,141.20x = 1,679,100.60 × 488,507.60
  4. Step 4: Simplify right side
    1,119,141.20x = 820,253,404,264.56
  5. Step 5: Solve for x
    x = 820,253,404,264.56/1,119,141.20
  6. Step 6: Final answer
    x = 732,931.11

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Double scale
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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.