Home / 820,730.91-1,132,578.93-514,972.11

Finding the Fourth Proportional to 820,730.91, 1,132,578.93 and 514,972.11

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Solution

The fourth proportional to 820,730.91, 1,132,578.93 and 514,972.11 is: 710,642.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,730.91 : 1,132,578.93 = 514,972.11 : x
  2. Step 2: Convert to fraction form
    820,730.91/1,132,578.93 = 514,972.11/x
  3. Step 3: Cross multiply
    820,730.91x = 1,132,578.93 × 514,972.11
  4. Step 4: Simplify right side
    820,730.91x = 583,246,561,323.64
  5. Step 5: Solve for x
    x = 583,246,561,323.64/820,730.91
  6. Step 6: Final answer
    x = 710,642.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.