Home / 781,367.40-1,172,108.70-282,666.60

Finding the Fourth Proportional to 781,367.40, 1,172,108.70 and 282,666.60

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Solution

The fourth proportional to 781,367.40, 1,172,108.70 and 282,666.60 is: 424,020.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,367.40 : 1,172,108.70 = 282,666.60 : x
  2. Step 2: Convert to fraction form
    781,367.40/1,172,108.70 = 282,666.60/x
  3. Step 3: Cross multiply
    781,367.40x = 1,172,108.70 × 282,666.60
  4. Step 4: Simplify right side
    781,367.40x = 331,315,981,059.42
  5. Step 5: Solve for x
    x = 331,315,981,059.42/781,367.40
  6. Step 6: Final answer
    x = 424,020.74

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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.