Home / 675,329.40-1,013,147.70-394,702.20

Finding the Fourth Proportional to 675,329.40, 1,013,147.70 and 394,702.20

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Solution

The fourth proportional to 675,329.40, 1,013,147.70 and 394,702.20 is: 592,143.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,329.40 : 1,013,147.70 = 394,702.20 : x
  2. Step 2: Convert to fraction form
    675,329.40/1,013,147.70 = 394,702.20/x
  3. Step 3: Cross multiply
    675,329.40x = 1,013,147.70 × 394,702.20
  4. Step 4: Simplify right side
    675,329.40x = 399,891,626,114.94
  5. Step 5: Solve for x
    x = 399,891,626,114.94/675,329.40
  6. Step 6: Final answer
    x = 592,143.07

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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.