Home / 1,218,684.50-1,681,763.93-674,808.58

Finding the Fourth Proportional to 1,218,684.50, 1,681,763.93 and 674,808.58

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Solution

The fourth proportional to 1,218,684.50, 1,681,763.93 and 674,808.58 is: 931,224.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,684.50 : 1,681,763.93 = 674,808.58 : x
  2. Step 2: Convert to fraction form
    1,218,684.50/1,681,763.93 = 674,808.58/x
  3. Step 3: Cross multiply
    1,218,684.50x = 1,681,763.93 × 674,808.58
  4. Step 4: Simplify right side
    1,218,684.50x = 1,134,868,729,498.52
  5. Step 5: Solve for x
    x = 1,134,868,729,498.52/1,218,684.50
  6. Step 6: Final answer
    x = 931,224.39

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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.