Home / 1,013,979.25-1,521,701.57-398,574.91

Finding the Fourth Proportional to 1,013,979.25, 1,521,701.57 and 398,574.91

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Solution

The fourth proportional to 1,013,979.25, 1,521,701.57 and 398,574.91 is: 598,150.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,013,979.25 : 1,521,701.57 = 398,574.91 : x
  2. Step 2: Convert to fraction form
    1,013,979.25/1,521,701.57 = 398,574.91/x
  3. Step 3: Cross multiply
    1,013,979.25x = 1,521,701.57 × 398,574.91
  4. Step 4: Simplify right side
    1,013,979.25x = 606,512,066,309.61
  5. Step 5: Solve for x
    x = 606,512,066,309.61/1,013,979.25
  6. Step 6: Final answer
    x = 598,150.37

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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.