Home / 1,499,738.09-2,069,632.62-811,407.65

Finding the Fourth Proportional to 1,499,738.09, 2,069,632.62 and 811,407.65

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Solution

The fourth proportional to 1,499,738.09, 2,069,632.62 and 811,407.65 is: 1,119,739.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,499,738.09 : 2,069,632.62 = 811,407.65 : x
  2. Step 2: Convert to fraction form
    1,499,738.09/2,069,632.62 = 811,407.65/x
  3. Step 3: Cross multiply
    1,499,738.09x = 2,069,632.62 × 811,407.65
  4. Step 4: Simplify right side
    1,499,738.09x = 1,679,315,730,209.38
  5. Step 5: Solve for x
    x = 1,679,315,730,209.38/1,499,738.09
  6. Step 6: Final answer
    x = 1,119,739.34

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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.