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Finding the Fourth Proportional to 560,293.92, 840,965.76 and 260,981.10

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Solution

The fourth proportional to 560,293.92, 840,965.76 and 260,981.10 is: 391,716.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,293.92 : 840,965.76 = 260,981.10 : x
  2. Step 2: Convert to fraction form
    560,293.92/840,965.76 = 260,981.10/x
  3. Step 3: Cross multiply
    560,293.92x = 840,965.76 × 260,981.10
  4. Step 4: Simplify right side
    560,293.92x = 219,476,169,107.14
  5. Step 5: Solve for x
    x = 219,476,169,107.14/560,293.92
  6. Step 6: Final answer
    x = 391,716.14

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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.