Home / 917,291.10-1,375,936.65-492,138.30

Finding the Fourth Proportional to 917,291.10, 1,375,936.65 and 492,138.30

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Solution

The fourth proportional to 917,291.10, 1,375,936.65 and 492,138.30 is: 738,207.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,291.10 : 1,375,936.65 = 492,138.30 : x
  2. Step 2: Convert to fraction form
    917,291.10/1,375,936.65 = 492,138.30/x
  3. Step 3: Cross multiply
    917,291.10x = 1,375,936.65 × 492,138.30
  4. Step 4: Simplify right side
    917,291.10x = 677,151,123,838.70
  5. Step 5: Solve for x
    x = 677,151,123,838.70/917,291.10
  6. Step 6: Final answer
    x = 738,207.45

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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.