Home / 389,902.20-583,931.70-264,564.60

Finding the Fourth Proportional to 389,902.20, 583,931.70 and 264,564.60

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Solution

The fourth proportional to 389,902.20, 583,931.70 and 264,564.60 is: 396,221.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,902.20 : 583,931.70 = 264,564.60 : x
  2. Step 2: Convert to fraction form
    389,902.20/583,931.70 = 264,564.60/x
  3. Step 3: Cross multiply
    389,902.20x = 583,931.70 × 264,564.60
  4. Step 4: Simplify right side
    389,902.20x = 154,487,656,637.82
  5. Step 5: Solve for x
    x = 154,487,656,637.82/389,902.20
  6. Step 6: Final answer
    x = 396,221.56

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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.