Home / 347,621.46-479,469.76-319,033.24

Finding the Fourth Proportional to 347,621.46, 479,469.76 and 319,033.24

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Solution

The fourth proportional to 347,621.46, 479,469.76 and 319,033.24 is: 440,038.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,621.46 : 479,469.76 = 319,033.24 : x
  2. Step 2: Convert to fraction form
    347,621.46/479,469.76 = 319,033.24/x
  3. Step 3: Cross multiply
    347,621.46x = 479,469.76 × 319,033.24
  4. Step 4: Simplify right side
    347,621.46x = 152,966,791,014.82
  5. Step 5: Solve for x
    x = 152,966,791,014.82/347,621.46
  6. Step 6: Final answer
    x = 440,038.40

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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.