Home / 1,442,132.29-1,989,921.48-830,166.80

Finding the Fourth Proportional to 1,442,132.29, 1,989,921.48 and 830,166.80

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Solution

The fourth proportional to 1,442,132.29, 1,989,921.48 and 830,166.80 is: 1,145,502.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442,132.29 : 1,989,921.48 = 830,166.80 : x
  2. Step 2: Convert to fraction form
    1,442,132.29/1,989,921.48 = 830,166.80/x
  3. Step 3: Cross multiply
    1,442,132.29x = 1,989,921.48 × 830,166.80
  4. Step 4: Simplify right side
    1,442,132.29x = 1,651,966,744,506.47
  5. Step 5: Solve for x
    x = 1,651,966,744,506.47/1,442,132.29
  6. Step 6: Final answer
    x = 1,145,502.92

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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.