Home / 1,988,752.65-2,743,306.43-1,407,321.69

Finding the Fourth Proportional to 1,988,752.65, 2,743,306.43 and 1,407,321.69

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Solution

The fourth proportional to 1,988,752.65, 2,743,306.43 and 1,407,321.69 is: 1,941,274.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988,752.65 : 2,743,306.43 = 1,407,321.69 : x
  2. Step 2: Convert to fraction form
    1,988,752.65/2,743,306.43 = 1,407,321.69/x
  3. Step 3: Cross multiply
    1,988,752.65x = 2,743,306.43 × 1,407,321.69
  4. Step 4: Simplify right side
    1,988,752.65x = 3,860,714,634,218.86
  5. Step 5: Solve for x
    x = 3,860,714,634,218.86/1,988,752.65
  6. Step 6: Final answer
    x = 1,941,274.41

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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.