Home / 1,218,565.95-1,681,673.53-674,701.77

Finding the Fourth Proportional to 1,218,565.95, 1,681,673.53 and 674,701.77

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Solution

The fourth proportional to 1,218,565.95, 1,681,673.53 and 674,701.77 is: 931,117.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,565.95 : 1,681,673.53 = 674,701.77 : x
  2. Step 2: Convert to fraction form
    1,218,565.95/1,681,673.53 = 674,701.77/x
  3. Step 3: Cross multiply
    1,218,565.95x = 1,681,673.53 × 674,701.77
  4. Step 4: Simplify right side
    1,218,565.95x = 1,134,628,107,253.15
  5. Step 5: Solve for x
    x = 1,134,628,107,253.15/1,218,565.95
  6. Step 6: Final answer
    x = 931,117.52

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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.