Home / 880,624.80-1,320,937.20-319,586.40

Finding the Fourth Proportional to 880,624.80, 1,320,937.20 and 319,586.40

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Solution

The fourth proportional to 880,624.80, 1,320,937.20 and 319,586.40 is: 479,379.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,624.80 : 1,320,937.20 = 319,586.40 : x
  2. Step 2: Convert to fraction form
    880,624.80/1,320,937.20 = 319,586.40/x
  3. Step 3: Cross multiply
    880,624.80x = 1,320,937.20 × 319,586.40
  4. Step 4: Simplify right side
    880,624.80x = 422,153,564,374.08
  5. Step 5: Solve for x
    x = 422,153,564,374.08/880,624.80
  6. Step 6: Final answer
    x = 479,379.60

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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.