Home / 788,600.40-1,183,678.20-389,691.60

Finding the Fourth Proportional to 788,600.40, 1,183,678.20 and 389,691.60

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Solution

The fourth proportional to 788,600.40, 1,183,678.20 and 389,691.60 is: 584,921.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,600.40 : 1,183,678.20 = 389,691.60 : x
  2. Step 2: Convert to fraction form
    788,600.40/1,183,678.20 = 389,691.60/x
  3. Step 3: Cross multiply
    788,600.40x = 1,183,678.20 × 389,691.60
  4. Step 4: Simplify right side
    788,600.40x = 461,269,451,643.12
  5. Step 5: Solve for x
    x = 461,269,451,643.12/788,600.40
  6. Step 6: Final answer
    x = 584,921.66

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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.