Home / 1,218,278.14-1,681,237.12-674,423

Finding the Fourth Proportional to 1,218,278.14, 1,681,237.12 and 674,423

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Solution

The fourth proportional to 1,218,278.14, 1,681,237.12 and 674,423 is: 930,711.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,278.14 : 1,681,237.12 = 674,423 : x
  2. Step 2: Convert to fraction form
    1,218,278.14/1,681,237.12 = 674,423/x
  3. Step 3: Cross multiply
    1,218,278.14x = 1,681,237.12 × 674,423
  4. Step 4: Simplify right side
    1,218,278.14x = 1,133,864,982,181.76
  5. Step 5: Solve for x
    x = 1,133,864,982,181.76/1,218,278.14
  6. Step 6: Final answer
    x = 930,711.10

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.