Home / 1,218,555.08-1,681,658.53-674,690.86

Finding the Fourth Proportional to 1,218,555.08, 1,681,658.53 and 674,690.86

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Solution

The fourth proportional to 1,218,555.08, 1,681,658.53 and 674,690.86 is: 931,102.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,555.08 : 1,681,658.53 = 674,690.86 : x
  2. Step 2: Convert to fraction form
    1,218,555.08/1,681,658.53 = 674,690.86/x
  3. Step 3: Cross multiply
    1,218,555.08x = 1,681,658.53 × 674,690.86
  4. Step 4: Simplify right side
    1,218,555.08x = 1,134,599,639,832.04
  5. Step 5: Solve for x
    x = 1,134,599,639,832.04/1,218,555.08
  6. Step 6: Final answer
    x = 931,102.47

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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.