Home / 347,474.27-479,267.30-318,886.25

Finding the Fourth Proportional to 347,474.27, 479,267.30 and 318,886.25

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Solution

The fourth proportional to 347,474.27, 479,267.30 and 318,886.25 is: 439,836.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,474.27 : 479,267.30 = 318,886.25 : x
  2. Step 2: Convert to fraction form
    347,474.27/479,267.30 = 318,886.25/x
  3. Step 3: Cross multiply
    347,474.27x = 479,267.30 × 318,886.25
  4. Step 4: Simplify right side
    347,474.27x = 152,831,752,244.52
  5. Step 5: Solve for x
    x = 152,831,752,244.52/347,474.27
  6. Step 6: Final answer
    x = 439,836.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.