Home / 1,026,839.88-1,416,605.13-687,417.48

Finding the Fourth Proportional to 1,026,839.88, 1,416,605.13 and 687,417.48

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Solution

The fourth proportional to 1,026,839.88, 1,416,605.13 and 687,417.48 is: 948,345.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,026,839.88 : 1,416,605.13 = 687,417.48 : x
  2. Step 2: Convert to fraction form
    1,026,839.88/1,416,605.13 = 687,417.48/x
  3. Step 3: Cross multiply
    1,026,839.88x = 1,416,605.13 × 687,417.48
  4. Step 4: Simplify right side
    1,026,839.88x = 973,799,128,619.67
  5. Step 5: Solve for x
    x = 973,799,128,619.67/1,026,839.88
  6. Step 6: Final answer
    x = 948,345.65

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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.