Home / 918,008.70-1,377,013.05-669,176.70

Finding the Fourth Proportional to 918,008.70, 1,377,013.05 and 669,176.70

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Solution

The fourth proportional to 918,008.70, 1,377,013.05 and 669,176.70 is: 1,003,765.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,008.70 : 1,377,013.05 = 669,176.70 : x
  2. Step 2: Convert to fraction form
    918,008.70/1,377,013.05 = 669,176.70/x
  3. Step 3: Cross multiply
    918,008.70x = 1,377,013.05 × 669,176.70
  4. Step 4: Simplify right side
    918,008.70x = 921,465,048,655.94
  5. Step 5: Solve for x
    x = 921,465,048,655.94/918,008.70
  6. Step 6: Final answer
    x = 1,003,765.05

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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.