Home / 898,272.60-1,347,408.90-399,636.60

Finding the Fourth Proportional to 898,272.60, 1,347,408.90 and 399,636.60

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Solution

The fourth proportional to 898,272.60, 1,347,408.90 and 399,636.60 is: 599,454.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,272.60 : 1,347,408.90 = 399,636.60 : x
  2. Step 2: Convert to fraction form
    898,272.60/1,347,408.90 = 399,636.60/x
  3. Step 3: Cross multiply
    898,272.60x = 1,347,408.90 × 399,636.60
  4. Step 4: Simplify right side
    898,272.60x = 538,473,911,605.74
  5. Step 5: Solve for x
    x = 538,473,911,605.74/898,272.60
  6. Step 6: Final answer
    x = 599,454.90

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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.