Home / 1,760,862.72-2,642,343.36-639,019.20

Finding the Fourth Proportional to 1,760,862.72, 2,642,343.36 and 639,019.20

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Solution

The fourth proportional to 1,760,862.72, 2,642,343.36 and 639,019.20 is: 958,909.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,760,862.72 : 2,642,343.36 = 639,019.20 : x
  2. Step 2: Convert to fraction form
    1,760,862.72/2,642,343.36 = 639,019.20/x
  3. Step 3: Cross multiply
    1,760,862.72x = 2,642,343.36 × 639,019.20
  4. Step 4: Simplify right side
    1,760,862.72x = 1,688,508,140,032.51
  5. Step 5: Solve for x
    x = 1,688,508,140,032.51/1,760,862.72
  6. Step 6: Final answer
    x = 958,909.58

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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.