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Finding the Fourth Proportional to 827,114.40, 1,240,671.60 and 294,652.80

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Solution

The fourth proportional to 827,114.40, 1,240,671.60 and 294,652.80 is: 441,979.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,114.40 : 1,240,671.60 = 294,652.80 : x
  2. Step 2: Convert to fraction form
    827,114.40/1,240,671.60 = 294,652.80/x
  3. Step 3: Cross multiply
    827,114.40x = 1,240,671.60 × 294,652.80
  4. Step 4: Simplify right side
    827,114.40x = 365,567,360,820.48
  5. Step 5: Solve for x
    x = 365,567,360,820.48/827,114.40
  6. Step 6: Final answer
    x = 441,979.20

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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.