Home / 547,838.10-822,371.55-423,729.30

Finding the Fourth Proportional to 547,838.10, 822,371.55 and 423,729.30

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Solution

The fourth proportional to 547,838.10, 822,371.55 and 423,729.30 is: 636,069.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,838.10 : 822,371.55 = 423,729.30 : x
  2. Step 2: Convert to fraction form
    547,838.10/822,371.55 = 423,729.30/x
  3. Step 3: Cross multiply
    547,838.10x = 822,371.55 × 423,729.30
  4. Step 4: Simplify right side
    547,838.10x = 348,462,921,221.42
  5. Step 5: Solve for x
    x = 348,462,921,221.42/547,838.10
  6. Step 6: Final answer
    x = 636,069.16

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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.