Home / 805,013.04-1,207,665.34-331,440.06

Finding the Fourth Proportional to 805,013.04, 1,207,665.34 and 331,440.06

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Solution

The fourth proportional to 805,013.04, 1,207,665.34 and 331,440.06 is: 497,220.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,013.04 : 1,207,665.34 = 331,440.06 : x
  2. Step 2: Convert to fraction form
    805,013.04/1,207,665.34 = 331,440.06/x
  3. Step 3: Cross multiply
    805,013.04x = 1,207,665.34 × 331,440.06
  4. Step 4: Simplify right side
    805,013.04x = 400,268,672,749.52
  5. Step 5: Solve for x
    x = 400,268,672,749.52/805,013.04
  6. Step 6: Final answer
    x = 497,220.11

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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.