Home / 859,280.40-1,288,920.60-460,699.65

Finding the Fourth Proportional to 859,280.40, 1,288,920.60 and 460,699.65

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Solution

The fourth proportional to 859,280.40, 1,288,920.60 and 460,699.65 is: 691,049.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,280.40 : 1,288,920.60 = 460,699.65 : x
  2. Step 2: Convert to fraction form
    859,280.40/1,288,920.60 = 460,699.65/x
  3. Step 3: Cross multiply
    859,280.40x = 1,288,920.60 × 460,699.65
  4. Step 4: Simplify right side
    859,280.40x = 593,805,269,297.79
  5. Step 5: Solve for x
    x = 593,805,269,297.79/859,280.40
  6. Step 6: Final answer
    x = 691,049.48

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Similar ratio
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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.