Home / 723,875.24-1,085,821.21-218,440.59

Finding the Fourth Proportional to 723,875.24, 1,085,821.21 and 218,440.59

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Solution

The fourth proportional to 723,875.24, 1,085,821.21 and 218,440.59 is: 327,663.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,875.24 : 1,085,821.21 = 218,440.59 : x
  2. Step 2: Convert to fraction form
    723,875.24/1,085,821.21 = 218,440.59/x
  3. Step 3: Cross multiply
    723,875.24x = 1,085,821.21 × 218,440.59
  4. Step 4: Simplify right side
    723,875.24x = 237,187,425,746.91
  5. Step 5: Solve for x
    x = 237,187,425,746.91/723,875.24
  6. Step 6: Final answer
    x = 327,663.40

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Double scale
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Similar ratio
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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.