Home / 878,716.98-1,212,658.02-486,254.43

Finding the Fourth Proportional to 878,716.98, 1,212,658.02 and 486,254.43

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Solution

The fourth proportional to 878,716.98, 1,212,658.02 and 486,254.43 is: 671,046.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,716.98 : 1,212,658.02 = 486,254.43 : x
  2. Step 2: Convert to fraction form
    878,716.98/1,212,658.02 = 486,254.43/x
  3. Step 3: Cross multiply
    878,716.98x = 1,212,658.02 × 486,254.43
  4. Step 4: Simplify right side
    878,716.98x = 589,660,334,300.03
  5. Step 5: Solve for x
    x = 589,660,334,300.03/878,716.98
  6. Step 6: Final answer
    x = 671,046.93

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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.