Home / 917,412.80-1,376,119.20-664,158.20

Finding the Fourth Proportional to 917,412.80, 1,376,119.20 and 664,158.20

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Solution

The fourth proportional to 917,412.80, 1,376,119.20 and 664,158.20 is: 996,237.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,412.80 : 1,376,119.20 = 664,158.20 : x
  2. Step 2: Convert to fraction form
    917,412.80/1,376,119.20 = 664,158.20/x
  3. Step 3: Cross multiply
    917,412.80x = 1,376,119.20 × 664,158.20
  4. Step 4: Simplify right side
    917,412.80x = 913,960,850,857.44
  5. Step 5: Solve for x
    x = 913,960,850,857.44/917,412.80
  6. Step 6: Final answer
    x = 996,237.30

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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.