Home / 807,399.60-1,114,212.48-439,874.92

Finding the Fourth Proportional to 807,399.60, 1,114,212.48 and 439,874.92

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Solution

The fourth proportional to 807,399.60, 1,114,212.48 and 439,874.92 is: 607,027.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,399.60 : 1,114,212.48 = 439,874.92 : x
  2. Step 2: Convert to fraction form
    807,399.60/1,114,212.48 = 439,874.92/x
  3. Step 3: Cross multiply
    807,399.60x = 1,114,212.48 × 439,874.92
  4. Step 4: Simplify right side
    807,399.60x = 490,114,125,503.00
  5. Step 5: Solve for x
    x = 490,114,125,503.00/807,399.60
  6. Step 6: Final answer
    x = 607,027.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.