Home / 1,218,718.31-1,681,830.18-674,854.07

Finding the Fourth Proportional to 1,218,718.31, 1,681,830.18 and 674,854.07

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Solution

The fourth proportional to 1,218,718.31, 1,681,830.18 and 674,854.07 is: 931,298.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,718.31 : 1,681,830.18 = 674,854.07 : x
  2. Step 2: Convert to fraction form
    1,218,718.31/1,681,830.18 = 674,854.07/x
  3. Step 3: Cross multiply
    1,218,718.31x = 1,681,830.18 × 674,854.07
  4. Step 4: Simplify right side
    1,218,718.31x = 1,134,989,933,612.68
  5. Step 5: Solve for x
    x = 1,134,989,933,612.68/1,218,718.31
  6. Step 6: Final answer
    x = 931,298.01

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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.