Home / 671,572.70-1,007,359.05-272,007.80

Finding the Fourth Proportional to 671,572.70, 1,007,359.05 and 272,007.80

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Solution

The fourth proportional to 671,572.70, 1,007,359.05 and 272,007.80 is: 408,011.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,572.70 : 1,007,359.05 = 272,007.80 : x
  2. Step 2: Convert to fraction form
    671,572.70/1,007,359.05 = 272,007.80/x
  3. Step 3: Cross multiply
    671,572.70x = 1,007,359.05 × 272,007.80
  4. Step 4: Simplify right side
    671,572.70x = 274,009,519,000.59
  5. Step 5: Solve for x
    x = 274,009,519,000.59/671,572.70
  6. Step 6: Final answer
    x = 408,011.70

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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.