Home / 389,631.70-584,447.55-275,470.30

Finding the Fourth Proportional to 389,631.70, 584,447.55 and 275,470.30

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Solution

The fourth proportional to 389,631.70, 584,447.55 and 275,470.30 is: 413,205.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,631.70 : 584,447.55 = 275,470.30 : x
  2. Step 2: Convert to fraction form
    389,631.70/584,447.55 = 275,470.30/x
  3. Step 3: Cross multiply
    389,631.70x = 584,447.55 × 275,470.30
  4. Step 4: Simplify right side
    389,631.70x = 160,997,941,932.77
  5. Step 5: Solve for x
    x = 160,997,941,932.77/389,631.70
  6. Step 6: Final answer
    x = 413,205.45

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1.5x scale

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.