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Finding the Fourth Proportional to 578,002.90, 867,004.35 and 311,626.30

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Solution

The fourth proportional to 578,002.90, 867,004.35 and 311,626.30 is: 467,439.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,002.90 : 867,004.35 = 311,626.30 : x
  2. Step 2: Convert to fraction form
    578,002.90/867,004.35 = 311,626.30/x
  3. Step 3: Cross multiply
    578,002.90x = 867,004.35 × 311,626.30
  4. Step 4: Simplify right side
    578,002.90x = 270,181,357,674.41
  5. Step 5: Solve for x
    x = 270,181,357,674.41/578,002.90
  6. Step 6: Final answer
    x = 467,439.45

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Similar ratio
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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.