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Finding the Fourth Proportional to 560,495.68, 840,719.96 and 260,873.20

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Solution

The fourth proportional to 560,495.68, 840,719.96 and 260,873.20 is: 391,298.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,495.68 : 840,719.96 = 260,873.20 : x
  2. Step 2: Convert to fraction form
    560,495.68/840,719.96 = 260,873.20/x
  3. Step 3: Cross multiply
    560,495.68x = 840,719.96 × 260,873.20
  4. Step 4: Simplify right side
    560,495.68x = 219,321,306,269.07
  5. Step 5: Solve for x
    x = 219,321,306,269.07/560,495.68
  6. Step 6: Final answer
    x = 391,298.83

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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.