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Finding the Fourth Proportional to 480,278.48, 720,417.72 and 180,826.24

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Solution

The fourth proportional to 480,278.48, 720,417.72 and 180,826.24 is: 271,239.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,278.48 : 720,417.72 = 180,826.24 : x
  2. Step 2: Convert to fraction form
    480,278.48/720,417.72 = 180,826.24/x
  3. Step 3: Cross multiply
    480,278.48x = 720,417.72 × 180,826.24
  4. Step 4: Simplify right side
    480,278.48x = 130,270,427,536.97
  5. Step 5: Solve for x
    x = 130,270,427,536.97/480,278.48
  6. Step 6: Final answer
    x = 271,239.36

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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.