Home / 1,213,155.20-1,816,233.60-814,246.40

Finding the Fourth Proportional to 1,213,155.20, 1,816,233.60 and 814,246.40

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Solution

The fourth proportional to 1,213,155.20, 1,816,233.60 and 814,246.40 is: 1,219,021.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,155.20 : 1,816,233.60 = 814,246.40 : x
  2. Step 2: Convert to fraction form
    1,213,155.20/1,816,233.60 = 814,246.40/x
  3. Step 3: Cross multiply
    1,213,155.20x = 1,816,233.60 × 814,246.40
  4. Step 4: Simplify right side
    1,213,155.20x = 1,478,861,670,359.04
  5. Step 5: Solve for x
    x = 1,478,861,670,359.04/1,213,155.20
  6. Step 6: Final answer
    x = 1,219,021.00

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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.