Home / 816,906.40-1,225,359.60-397,002.40

Finding the Fourth Proportional to 816,906.40, 1,225,359.60 and 397,002.40

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Solution

The fourth proportional to 816,906.40, 1,225,359.60 and 397,002.40 is: 595,503.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,906.40 : 1,225,359.60 = 397,002.40 : x
  2. Step 2: Convert to fraction form
    816,906.40/1,225,359.60 = 397,002.40/x
  3. Step 3: Cross multiply
    816,906.40x = 1,225,359.60 × 397,002.40
  4. Step 4: Simplify right side
    816,906.40x = 486,470,702,063.04
  5. Step 5: Solve for x
    x = 486,470,702,063.04/816,906.40
  6. Step 6: Final answer
    x = 595,503.60

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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.