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Finding the Fourth Proportional to 560,487.16, 840,707.22 and 260,864.68

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Solution

The fourth proportional to 560,487.16, 840,707.22 and 260,864.68 is: 391,286.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,487.16 : 840,707.22 = 260,864.68 : x
  2. Step 2: Convert to fraction form
    560,487.16/840,707.22 = 260,864.68/x
  3. Step 3: Cross multiply
    560,487.16x = 840,707.22 × 260,864.68
  4. Step 4: Simplify right side
    560,487.16x = 219,310,819,918.99
  5. Step 5: Solve for x
    x = 219,310,819,918.99/560,487.16
  6. Step 6: Final answer
    x = 391,286.07

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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.