Home / 638,980.52-881,897.46-384,472.04

Finding the Fourth Proportional to 638,980.52, 881,897.46 and 384,472.04

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Solution

The fourth proportional to 638,980.52, 881,897.46 and 384,472.04 is: 530,634.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,980.52 : 881,897.46 = 384,472.04 : x
  2. Step 2: Convert to fraction form
    638,980.52/881,897.46 = 384,472.04/x
  3. Step 3: Cross multiply
    638,980.52x = 881,897.46 × 384,472.04
  4. Step 4: Simplify right side
    638,980.52x = 339,064,915,517.02
  5. Step 5: Solve for x
    x = 339,064,915,517.02/638,980.52
  6. Step 6: Final answer
    x = 530,634.20

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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.