Home / 324,123.20-486,184.80-305,752.40

Finding the Fourth Proportional to 324,123.20, 486,184.80 and 305,752.40

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Solution

The fourth proportional to 324,123.20, 486,184.80 and 305,752.40 is: 458,628.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,123.20 : 486,184.80 = 305,752.40 : x
  2. Step 2: Convert to fraction form
    324,123.20/486,184.80 = 305,752.40/x
  3. Step 3: Cross multiply
    324,123.20x = 486,184.80 × 305,752.40
  4. Step 4: Simplify right side
    324,123.20x = 148,652,169,443.52
  5. Step 5: Solve for x
    x = 148,652,169,443.52/324,123.20
  6. Step 6: Final answer
    x = 458,628.60

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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.