Home / 1,760,867.72-2,642,350.86-639,024.20

Finding the Fourth Proportional to 1,760,867.72, 2,642,350.86 and 639,024.20

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Solution

The fourth proportional to 1,760,867.72, 2,642,350.86 and 639,024.20 is: 958,917.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,760,867.72 : 2,642,350.86 = 639,024.20 : x
  2. Step 2: Convert to fraction form
    1,760,867.72/2,642,350.86 = 639,024.20/x
  3. Step 3: Cross multiply
    1,760,867.72x = 2,642,350.86 × 639,024.20
  4. Step 4: Simplify right side
    1,760,867.72x = 1,688,526,144,430.81
  5. Step 5: Solve for x
    x = 1,688,526,144,430.81/1,760,867.72
  6. Step 6: Final answer
    x = 958,917.09

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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.