Home / 853,772.70-1,279,276.65-537,663.90

Finding the Fourth Proportional to 853,772.70, 1,279,276.65 and 537,663.90

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Solution

The fourth proportional to 853,772.70, 1,279,276.65 and 537,663.90 is: 805,625.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,772.70 : 1,279,276.65 = 537,663.90 : x
  2. Step 2: Convert to fraction form
    853,772.70/1,279,276.65 = 537,663.90/x
  3. Step 3: Cross multiply
    853,772.70x = 1,279,276.65 × 537,663.90
  4. Step 4: Simplify right side
    853,772.70x = 687,820,872,817.94
  5. Step 5: Solve for x
    x = 687,820,872,817.94/853,772.70
  6. Step 6: Final answer
    x = 805,625.28

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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.