Home / 347,747.40-521,621.10-240,438.60

Finding the Fourth Proportional to 347,747.40, 521,621.10 and 240,438.60

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Solution

The fourth proportional to 347,747.40, 521,621.10 and 240,438.60 is: 360,657.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,747.40 : 521,621.10 = 240,438.60 : x
  2. Step 2: Convert to fraction form
    347,747.40/521,621.10 = 240,438.60/x
  3. Step 3: Cross multiply
    347,747.40x = 521,621.10 × 240,438.60
  4. Step 4: Simplify right side
    347,747.40x = 125,417,847,014.46
  5. Step 5: Solve for x
    x = 125,417,847,014.46/347,747.40
  6. Step 6: Final answer
    x = 360,657.90

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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.