Home / 1,218,718.52-1,681,830.51-674,854.31

Finding the Fourth Proportional to 1,218,718.52, 1,681,830.51 and 674,854.31

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Solution

The fourth proportional to 1,218,718.52, 1,681,830.51 and 674,854.31 is: 931,298.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,718.52 : 1,681,830.51 = 674,854.31 : x
  2. Step 2: Convert to fraction form
    1,218,718.52/1,681,830.51 = 674,854.31/x
  3. Step 3: Cross multiply
    1,218,718.52x = 1,681,830.51 × 674,854.31
  4. Step 4: Simplify right side
    1,218,718.52x = 1,134,990,559,953.85
  5. Step 5: Solve for x
    x = 1,134,990,559,953.85/1,218,718.52
  6. Step 6: Final answer
    x = 931,298.36

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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.