Home / 1,442,133.29-1,989,922.86-830,167.80

Finding the Fourth Proportional to 1,442,133.29, 1,989,922.86 and 830,167.80

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Solution

The fourth proportional to 1,442,133.29, 1,989,922.86 and 830,167.80 is: 1,145,504.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442,133.29 : 1,989,922.86 = 830,167.80 : x
  2. Step 2: Convert to fraction form
    1,442,133.29/1,989,922.86 = 830,167.80/x
  3. Step 3: Cross multiply
    1,442,133.29x = 1,989,922.86 × 830,167.80
  4. Step 4: Simplify right side
    1,442,133.29x = 1,651,969,882,855.91
  5. Step 5: Solve for x
    x = 1,651,969,882,855.91/1,442,133.29
  6. Step 6: Final answer
    x = 1,145,504.30

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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.