Home / 1,218,534.79-1,681,630.57-674,670.57

Finding the Fourth Proportional to 1,218,534.79, 1,681,630.57 and 674,670.57

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Solution

The fourth proportional to 1,218,534.79, 1,681,630.57 and 674,670.57 is: 931,074.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,534.79 : 1,681,630.57 = 674,670.57 : x
  2. Step 2: Convert to fraction form
    1,218,534.79/1,681,630.57 = 674,670.57/x
  3. Step 3: Cross multiply
    1,218,534.79x = 1,681,630.57 × 674,670.57
  4. Step 4: Simplify right side
    1,218,534.79x = 1,134,546,649,728.55
  5. Step 5: Solve for x
    x = 1,134,546,649,728.55/1,218,534.79
  6. Step 6: Final answer
    x = 931,074.48

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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.