Home / 1,531,720.80-2,113,717.68-852,642.72

Finding the Fourth Proportional to 1,531,720.80, 2,113,717.68 and 852,642.72

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Solution

The fourth proportional to 1,531,720.80, 2,113,717.68 and 852,642.72 is: 1,176,615.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531,720.80 : 2,113,717.68 = 852,642.72 : x
  2. Step 2: Convert to fraction form
    1,531,720.80/2,113,717.68 = 852,642.72/x
  3. Step 3: Cross multiply
    1,531,720.80x = 2,113,717.68 × 852,642.72
  4. Step 4: Simplify right side
    1,531,720.80x = 1,802,245,991,987.29
  5. Step 5: Solve for x
    x = 1,802,245,991,987.29/1,531,720.80
  6. Step 6: Final answer
    x = 1,176,615.21

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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.