Home / 1,218,532.42-1,681,627.29-674,668.21

Finding the Fourth Proportional to 1,218,532.42, 1,681,627.29 and 674,668.21

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Solution

The fourth proportional to 1,218,532.42, 1,681,627.29 and 674,668.21 is: 931,071.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,532.42 : 1,681,627.29 = 674,668.21 : x
  2. Step 2: Convert to fraction form
    1,218,532.42/1,681,627.29 = 674,668.21/x
  3. Step 3: Cross multiply
    1,218,532.42x = 1,681,627.29 × 674,668.21
  4. Step 4: Simplify right side
    1,218,532.42x = 1,134,540,473,631.45
  5. Step 5: Solve for x
    x = 1,134,540,473,631.45/1,218,532.42
  6. Step 6: Final answer
    x = 931,071.23

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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.