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Finding the Fourth Proportional to 898,416.40, 1,347,624.60 and 366,319.30

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Solution

The fourth proportional to 898,416.40, 1,347,624.60 and 366,319.30 is: 549,478.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,416.40 : 1,347,624.60 = 366,319.30 : x
  2. Step 2: Convert to fraction form
    898,416.40/1,347,624.60 = 366,319.30/x
  3. Step 3: Cross multiply
    898,416.40x = 1,347,624.60 × 366,319.30
  4. Step 4: Simplify right side
    898,416.40x = 493,660,900,134.78
  5. Step 5: Solve for x
    x = 493,660,900,134.78/898,416.40
  6. Step 6: Final answer
    x = 549,478.95

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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.