Home / 901,281.79-1,242,443.77-686,046.97

Finding the Fourth Proportional to 901,281.79, 1,242,443.77 and 686,046.97

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Solution

The fourth proportional to 901,281.79, 1,242,443.77 and 686,046.97 is: 945,736.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,281.79 : 1,242,443.77 = 686,046.97 : x
  2. Step 2: Convert to fraction form
    901,281.79/1,242,443.77 = 686,046.97/x
  3. Step 3: Cross multiply
    901,281.79x = 1,242,443.77 × 686,046.97
  4. Step 4: Simplify right side
    901,281.79x = 852,374,783,803.88
  5. Step 5: Solve for x
    x = 852,374,783,803.88/901,281.79
  6. Step 6: Final answer
    x = 945,736.17

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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.