Home / 1,105,120.60-1,657,680.90-768,541.30

Finding the Fourth Proportional to 1,105,120.60, 1,657,680.90 and 768,541.30

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Solution

The fourth proportional to 1,105,120.60, 1,657,680.90 and 768,541.30 is: 1,152,811.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,120.60 : 1,657,680.90 = 768,541.30 : x
  2. Step 2: Convert to fraction form
    1,105,120.60/1,657,680.90 = 768,541.30/x
  3. Step 3: Cross multiply
    1,105,120.60x = 1,657,680.90 × 768,541.30
  4. Step 4: Simplify right side
    1,105,120.60x = 1,273,996,233,871.17
  5. Step 5: Solve for x
    x = 1,273,996,233,871.17/1,105,120.60
  6. Step 6: Final answer
    x = 1,152,811.95

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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.