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Finding the Fourth Proportional to 560,239.07, 840,358.13 and 205,280.87

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Solution

The fourth proportional to 560,239.07, 840,358.13 and 205,280.87 is: 307,921.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,239.07 : 840,358.13 = 205,280.87 : x
  2. Step 2: Convert to fraction form
    560,239.07/840,358.13 = 205,280.87/x
  3. Step 3: Cross multiply
    560,239.07x = 840,358.13 × 205,280.87
  4. Step 4: Simplify right side
    560,239.07x = 172,509,442,809.78
  5. Step 5: Solve for x
    x = 172,509,442,809.78/560,239.07
  6. Step 6: Final answer
    x = 307,921.12

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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.