Home / 1,218,167.79-1,681,051.20-674,291.91

Finding the Fourth Proportional to 1,218,167.79, 1,681,051.20 and 674,291.91

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Solution

The fourth proportional to 1,218,167.79, 1,681,051.20 and 674,291.91 is: 930,511.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,167.79 : 1,681,051.20 = 674,291.91 : x
  2. Step 2: Convert to fraction form
    1,218,167.79/1,681,051.20 = 674,291.91/x
  3. Step 3: Cross multiply
    1,218,167.79x = 1,681,051.20 × 674,291.91
  4. Step 4: Simplify right side
    1,218,167.79x = 1,133,519,224,455.79
  5. Step 5: Solve for x
    x = 1,133,519,224,455.79/1,218,167.79
  6. Step 6: Final answer
    x = 930,511.57

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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.