Home / 447,002.10-670,503.15-258,045.30

Finding the Fourth Proportional to 447,002.10, 670,503.15 and 258,045.30

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Solution

The fourth proportional to 447,002.10, 670,503.15 and 258,045.30 is: 387,067.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,002.10 : 670,503.15 = 258,045.30 : x
  2. Step 2: Convert to fraction form
    447,002.10/670,503.15 = 258,045.30/x
  3. Step 3: Cross multiply
    447,002.10x = 670,503.15 × 258,045.30
  4. Step 4: Simplify right side
    447,002.10x = 173,020,186,492.70
  5. Step 5: Solve for x
    x = 173,020,186,492.70/447,002.10
  6. Step 6: Final answer
    x = 387,067.95

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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.