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Finding the Fourth Proportional to 586,763.89, 880,145.85 and 320,379.10

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Solution

The fourth proportional to 586,763.89, 880,145.85 and 320,379.10 is: 480,568.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,763.89 : 880,145.85 = 320,379.10 : x
  2. Step 2: Convert to fraction form
    586,763.89/880,145.85 = 320,379.10/x
  3. Step 3: Cross multiply
    586,763.89x = 880,145.85 × 320,379.10
  4. Step 4: Simplify right side
    586,763.89x = 281,980,330,891.01
  5. Step 5: Solve for x
    x = 281,980,330,891.01/586,763.89
  6. Step 6: Final answer
    x = 480,568.65

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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.