Home / 1,213,428.04-1,818,724.68-912,943.12

Finding the Fourth Proportional to 1,213,428.04, 1,818,724.68 and 912,943.12

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Solution

The fourth proportional to 1,213,428.04, 1,818,724.68 and 912,943.12 is: 1,368,348.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,428.04 : 1,818,724.68 = 912,943.12 : x
  2. Step 2: Convert to fraction form
    1,213,428.04/1,818,724.68 = 912,943.12/x
  3. Step 3: Cross multiply
    1,213,428.04x = 1,818,724.68 × 912,943.12
  4. Step 4: Simplify right side
    1,213,428.04x = 1,660,392,183,780.20
  5. Step 5: Solve for x
    x = 1,660,392,183,780.20/1,213,428.04
  6. Step 6: Final answer
    x = 1,368,348.29

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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.