Home / 449,035.20-619,677.60-247,830.72

Finding the Fourth Proportional to 449,035.20, 619,677.60 and 247,830.72

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Solution

The fourth proportional to 449,035.20, 619,677.60 and 247,830.72 is: 342,011.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,035.20 : 619,677.60 = 247,830.72 : x
  2. Step 2: Convert to fraction form
    449,035.20/619,677.60 = 247,830.72/x
  3. Step 3: Cross multiply
    449,035.20x = 619,677.60 × 247,830.72
  4. Step 4: Simplify right side
    449,035.20x = 153,575,145,775.87
  5. Step 5: Solve for x
    x = 153,575,145,775.87/449,035.20
  6. Step 6: Final answer
    x = 342,011.37

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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.