Home / 1,218,699.39-1,681,784.60-674,823.48

Finding the Fourth Proportional to 1,218,699.39, 1,681,784.60 and 674,823.48

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Solution

The fourth proportional to 1,218,699.39, 1,681,784.60 and 674,823.48 is: 931,245.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,699.39 : 1,681,784.60 = 674,823.48 : x
  2. Step 2: Convert to fraction form
    1,218,699.39/1,681,784.60 = 674,823.48/x
  3. Step 3: Cross multiply
    1,218,699.39x = 1,681,784.60 × 674,823.48
  4. Step 4: Simplify right side
    1,218,699.39x = 1,134,907,733,008.29
  5. Step 5: Solve for x
    x = 1,134,907,733,008.29/1,218,699.39
  6. Step 6: Final answer
    x = 931,245.02

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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.