Home / 1,389,301.80-2,084,010.30-442,645.80

Finding the Fourth Proportional to 1,389,301.80, 2,084,010.30 and 442,645.80

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Solution

The fourth proportional to 1,389,301.80, 2,084,010.30 and 442,645.80 is: 663,987.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,301.80 : 2,084,010.30 = 442,645.80 : x
  2. Step 2: Convert to fraction form
    1,389,301.80/2,084,010.30 = 442,645.80/x
  3. Step 3: Cross multiply
    1,389,301.80x = 2,084,010.30 × 442,645.80
  4. Step 4: Simplify right side
    1,389,301.80x = 922,478,406,451.74
  5. Step 5: Solve for x
    x = 922,478,406,451.74/1,389,301.80
  6. Step 6: Final answer
    x = 663,987.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.