Home / 778,234.29-1,167,706.13-399,421.05

Finding the Fourth Proportional to 778,234.29, 1,167,706.13 and 399,421.05

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Solution

The fourth proportional to 778,234.29, 1,167,706.13 and 399,421.05 is: 599,313.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,234.29 : 1,167,706.13 = 399,421.05 : x
  2. Step 2: Convert to fraction form
    778,234.29/1,167,706.13 = 399,421.05/x
  3. Step 3: Cross multiply
    778,234.29x = 1,167,706.13 × 399,421.05
  4. Step 4: Simplify right side
    778,234.29x = 466,406,408,536.04
  5. Step 5: Solve for x
    x = 466,406,408,536.04/778,234.29
  6. Step 6: Final answer
    x = 599,313.62

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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.