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Finding the Fourth Proportional to 899,818.60, 1,350,246.30 and 339,255.40

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Solution

The fourth proportional to 899,818.60, 1,350,246.30 and 339,255.40 is: 509,078.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,818.60 : 1,350,246.30 = 339,255.40 : x
  2. Step 2: Convert to fraction form
    899,818.60/1,350,246.30 = 339,255.40/x
  3. Step 3: Cross multiply
    899,818.60x = 1,350,246.30 × 339,255.40
  4. Step 4: Simplify right side
    899,818.60x = 458,078,348,605.02
  5. Step 5: Solve for x
    x = 458,078,348,605.02/899,818.60
  6. Step 6: Final answer
    x = 509,078.55

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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.