Home / 723,987.70-1,085,976.15-218,547.70

Finding the Fourth Proportional to 723,987.70, 1,085,976.15 and 218,547.70

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Solution

The fourth proportional to 723,987.70, 1,085,976.15 and 218,547.70 is: 327,819.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,987.70 : 1,085,976.15 = 218,547.70 : x
  2. Step 2: Convert to fraction form
    723,987.70/1,085,976.15 = 218,547.70/x
  3. Step 3: Cross multiply
    723,987.70x = 1,085,976.15 × 218,547.70
  4. Step 4: Simplify right side
    723,987.70x = 237,337,589,837.36
  5. Step 5: Solve for x
    x = 237,337,589,837.36/723,987.70
  6. Step 6: Final answer
    x = 327,819.92

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1.5x scale

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.