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Finding the Fourth Proportional to 858,323.10, 1,287,484.65 and 227,300.70

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Solution

The fourth proportional to 858,323.10, 1,287,484.65 and 227,300.70 is: 340,951.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,323.10 : 1,287,484.65 = 227,300.70 : x
  2. Step 2: Convert to fraction form
    858,323.10/1,287,484.65 = 227,300.70/x
  3. Step 3: Cross multiply
    858,323.10x = 1,287,484.65 × 227,300.70
  4. Step 4: Simplify right side
    858,323.10x = 292,646,162,184.26
  5. Step 5: Solve for x
    x = 292,646,162,184.26/858,323.10
  6. Step 6: Final answer
    x = 340,951.05

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Double scale
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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.