Home / 916,844.20-1,375,266.30-664,901.80

Finding the Fourth Proportional to 916,844.20, 1,375,266.30 and 664,901.80

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Solution

The fourth proportional to 916,844.20, 1,375,266.30 and 664,901.80 is: 997,352.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,844.20 : 1,375,266.30 = 664,901.80 : x
  2. Step 2: Convert to fraction form
    916,844.20/1,375,266.30 = 664,901.80/x
  3. Step 3: Cross multiply
    916,844.20x = 1,375,266.30 × 664,901.80
  4. Step 4: Simplify right side
    916,844.20x = 914,417,038,349.34
  5. Step 5: Solve for x
    x = 914,417,038,349.34/916,844.20
  6. Step 6: Final answer
    x = 997,352.70

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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.