Home / 1,218,534.60-1,681,630.32-674,670.40

Finding the Fourth Proportional to 1,218,534.60, 1,681,630.32 and 674,670.40

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Solution

The fourth proportional to 1,218,534.60, 1,681,630.32 and 674,670.40 is: 931,074.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,534.60 : 1,681,630.32 = 674,670.40 : x
  2. Step 2: Convert to fraction form
    1,218,534.60/1,681,630.32 = 674,670.40/x
  3. Step 3: Cross multiply
    1,218,534.60x = 1,681,630.32 × 674,670.40
  4. Step 4: Simplify right side
    1,218,534.60x = 1,134,546,200,646.53
  5. Step 5: Solve for x
    x = 1,134,546,200,646.53/1,218,534.60
  6. Step 6: Final answer
    x = 931,074.26

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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.