Home / 1,218,270.69-1,681,226.85-674,415.56

Finding the Fourth Proportional to 1,218,270.69, 1,681,226.85 and 674,415.56

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Solution

The fourth proportional to 1,218,270.69, 1,681,226.85 and 674,415.56 is: 930,700.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,270.69 : 1,681,226.85 = 674,415.56 : x
  2. Step 2: Convert to fraction form
    1,218,270.69/1,681,226.85 = 674,415.56/x
  3. Step 3: Cross multiply
    1,218,270.69x = 1,681,226.85 × 674,415.56
  4. Step 4: Simplify right side
    1,218,270.69x = 1,133,845,541,011.42
  5. Step 5: Solve for x
    x = 1,133,845,541,011.42/1,218,270.69
  6. Step 6: Final answer
    x = 930,700.83

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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.