Home / 699,401.50-1,047,713.27-538,920.65

Finding the Fourth Proportional to 699,401.50, 1,047,713.27 and 538,920.65

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Solution

The fourth proportional to 699,401.50, 1,047,713.27 and 538,920.65 is: 807,310.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,401.50 : 1,047,713.27 = 538,920.65 : x
  2. Step 2: Convert to fraction form
    699,401.50/1,047,713.27 = 538,920.65/x
  3. Step 3: Cross multiply
    699,401.50x = 1,047,713.27 × 538,920.65
  4. Step 4: Simplify right side
    699,401.50x = 564,634,316,406.71
  5. Step 5: Solve for x
    x = 564,634,316,406.71/699,401.50
  6. Step 6: Final answer
    x = 807,310.71

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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.