Home / 918,908.46-1,267,907.85-536,861.43

Finding the Fourth Proportional to 918,908.46, 1,267,907.85 and 536,861.43

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Solution

The fourth proportional to 918,908.46, 1,267,907.85 and 536,861.43 is: 740,760.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,908.46 : 1,267,907.85 = 536,861.43 : x
  2. Step 2: Convert to fraction form
    918,908.46/1,267,907.85 = 536,861.43/x
  3. Step 3: Cross multiply
    918,908.46x = 1,267,907.85 × 536,861.43
  4. Step 4: Simplify right side
    918,908.46x = 680,690,821,459.23
  5. Step 5: Solve for x
    x = 680,690,821,459.23/918,908.46
  6. Step 6: Final answer
    x = 740,760.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.