Home / 1,218,699.20-1,681,784.34-674,823.30

Finding the Fourth Proportional to 1,218,699.20, 1,681,784.34 and 674,823.30

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Solution

The fourth proportional to 1,218,699.20, 1,681,784.34 and 674,823.30 is: 931,244.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,699.20 : 1,681,784.34 = 674,823.30 : x
  2. Step 2: Convert to fraction form
    1,218,699.20/1,681,784.34 = 674,823.30/x
  3. Step 3: Cross multiply
    1,218,699.20x = 1,681,784.34 × 674,823.30
  4. Step 4: Simplify right side
    1,218,699.20x = 1,134,907,258,207.12
  5. Step 5: Solve for x
    x = 1,134,907,258,207.12/1,218,699.20
  6. Step 6: Final answer
    x = 931,244.77

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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.