Home / 1,013,978.25-1,521,700.07-398,573.91

Finding the Fourth Proportional to 1,013,978.25, 1,521,700.07 and 398,573.91

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Solution

The fourth proportional to 1,013,978.25, 1,521,700.07 and 398,573.91 is: 598,148.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,013,978.25 : 1,521,700.07 = 398,573.91 : x
  2. Step 2: Convert to fraction form
    1,013,978.25/1,521,700.07 = 398,573.91/x
  3. Step 3: Cross multiply
    1,013,978.25x = 1,521,700.07 × 398,573.91
  4. Step 4: Simplify right side
    1,013,978.25x = 606,509,944,754.30
  5. Step 5: Solve for x
    x = 606,509,944,754.30/1,013,978.25
  6. Step 6: Final answer
    x = 598,148.87

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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.