Home / 987,900.49-1,482,523.85-455,425.93

Finding the Fourth Proportional to 987,900.49, 1,482,523.85 and 455,425.93

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Solution

The fourth proportional to 987,900.49, 1,482,523.85 and 455,425.93 is: 683,449.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,900.49 : 1,482,523.85 = 455,425.93 : x
  2. Step 2: Convert to fraction form
    987,900.49/1,482,523.85 = 455,425.93/x
  3. Step 3: Cross multiply
    987,900.49x = 1,482,523.85 × 455,425.93
  4. Step 4: Simplify right side
    987,900.49x = 675,179,803,133.43
  5. Step 5: Solve for x
    x = 675,179,803,133.43/987,900.49
  6. Step 6: Final answer
    x = 683,449.20

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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.