Home / 723,875.11-1,085,821.03-218,440.47

Finding the Fourth Proportional to 723,875.11, 1,085,821.03 and 218,440.47

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Solution

The fourth proportional to 723,875.11, 1,085,821.03 and 218,440.47 is: 327,663.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,875.11 : 1,085,821.03 = 218,440.47 : x
  2. Step 2: Convert to fraction form
    723,875.11/1,085,821.03 = 218,440.47/x
  3. Step 3: Cross multiply
    723,875.11x = 1,085,821.03 × 218,440.47
  4. Step 4: Simplify right side
    723,875.11x = 237,187,249,607.78
  5. Step 5: Solve for x
    x = 237,187,249,607.78/723,875.11
  6. Step 6: Final answer
    x = 327,663.22

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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.