Home / 1,207,934.40-1,811,894.88-309,374.40

Finding the Fourth Proportional to 1,207,934.40, 1,811,894.88 and 309,374.40

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Solution

The fourth proportional to 1,207,934.40, 1,811,894.88 and 309,374.40 is: 464,059.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,934.40 : 1,811,894.88 = 309,374.40 : x
  2. Step 2: Convert to fraction form
    1,207,934.40/1,811,894.88 = 309,374.40/x
  3. Step 3: Cross multiply
    1,207,934.40x = 1,811,894.88 × 309,374.40
  4. Step 4: Simplify right side
    1,207,934.40x = 560,553,891,363.07
  5. Step 5: Solve for x
    x = 560,553,891,363.07/1,207,934.40
  6. Step 6: Final answer
    x = 464,059.88

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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.