Home / 1,336,421.80-1,998,800.70-1,195,287.40

Finding the Fourth Proportional to 1,336,421.80, 1,998,800.70 and 1,195,287.40

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Solution

The fourth proportional to 1,336,421.80, 1,998,800.70 and 1,195,287.40 is: 1,787,715.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336,421.80 : 1,998,800.70 = 1,195,287.40 : x
  2. Step 2: Convert to fraction form
    1,336,421.80/1,998,800.70 = 1,195,287.40/x
  3. Step 3: Cross multiply
    1,336,421.80x = 1,998,800.70 × 1,195,287.40
  4. Step 4: Simplify right side
    1,336,421.80x = 2,389,141,291,821.18
  5. Step 5: Solve for x
    x = 2,389,141,291,821.18/1,336,421.80
  6. Step 6: Final answer
    x = 1,787,715.00

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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.