Home / 715,330.10-1,073,161.34-209,870.66

Finding the Fourth Proportional to 715,330.10, 1,073,161.34 and 209,870.66

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Solution

The fourth proportional to 715,330.10, 1,073,161.34 and 209,870.66 is: 314,854.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,330.10 : 1,073,161.34 = 209,870.66 : x
  2. Step 2: Convert to fraction form
    715,330.10/1,073,161.34 = 209,870.66/x
  3. Step 3: Cross multiply
    715,330.10x = 1,073,161.34 × 209,870.66
  4. Step 4: Simplify right side
    715,330.10x = 225,225,081,132.85
  5. Step 5: Solve for x
    x = 225,225,081,132.85/715,330.10
  6. Step 6: Final answer
    x = 314,854.75

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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.