Home / 828,134.60-1,242,201.90-492,211.40

Finding the Fourth Proportional to 828,134.60, 1,242,201.90 and 492,211.40

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Solution

The fourth proportional to 828,134.60, 1,242,201.90 and 492,211.40 is: 738,317.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,134.60 : 1,242,201.90 = 492,211.40 : x
  2. Step 2: Convert to fraction form
    828,134.60/1,242,201.90 = 492,211.40/x
  3. Step 3: Cross multiply
    828,134.60x = 1,242,201.90 × 492,211.40
  4. Step 4: Simplify right side
    828,134.60x = 611,425,936,281.66
  5. Step 5: Solve for x
    x = 611,425,936,281.66/828,134.60
  6. Step 6: Final answer
    x = 738,317.10

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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.