Home / 918,418.81-1,376,319.90-676,631.23

Finding the Fourth Proportional to 918,418.81, 1,376,319.90 and 676,631.23

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Solution

The fourth proportional to 918,418.81, 1,376,319.90 and 676,631.23 is: 1,013,982.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,418.81 : 1,376,319.90 = 676,631.23 : x
  2. Step 2: Convert to fraction form
    918,418.81/1,376,319.90 = 676,631.23/x
  3. Step 3: Cross multiply
    918,418.81x = 1,376,319.90 × 676,631.23
  4. Step 4: Simplify right side
    918,418.81x = 931,261,023,369.68
  5. Step 5: Solve for x
    x = 931,261,023,369.68/918,418.81
  6. Step 6: Final answer
    x = 1,013,982.96

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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.