Home / 1,315,217.71-1,814,484-763,839.55

Finding the Fourth Proportional to 1,315,217.71, 1,814,484 and 763,839.55

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Solution

The fourth proportional to 1,315,217.71, 1,814,484 and 763,839.55 is: 1,053,798.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,217.71 : 1,814,484 = 763,839.55 : x
  2. Step 2: Convert to fraction form
    1,315,217.71/1,814,484 = 763,839.55/x
  3. Step 3: Cross multiply
    1,315,217.71x = 1,814,484 × 763,839.55
  4. Step 4: Simplify right side
    1,315,217.71x = 1,385,974,642,042.20
  5. Step 5: Solve for x
    x = 1,385,974,642,042.20/1,315,217.71
  6. Step 6: Final answer
    x = 1,053,798.65

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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.