Home / 648,318.29-972,267.15-215,920.67

Finding the Fourth Proportional to 648,318.29, 972,267.15 and 215,920.67

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Solution

The fourth proportional to 648,318.29, 972,267.15 and 215,920.67 is: 323,810.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,318.29 : 972,267.15 = 215,920.67 : x
  2. Step 2: Convert to fraction form
    648,318.29/972,267.15 = 215,920.67/x
  3. Step 3: Cross multiply
    648,318.29x = 972,267.15 × 215,920.67
  4. Step 4: Simplify right side
    648,318.29x = 209,932,574,446.99
  5. Step 5: Solve for x
    x = 209,932,574,446.99/648,318.29
  6. Step 6: Final answer
    x = 323,810.97

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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.