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Finding the Fourth Proportional to 893,866.84, 1,233,549.72 and 485,967.76

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Solution

The fourth proportional to 893,866.84, 1,233,549.72 and 485,967.76 is: 670,642.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,866.84 : 1,233,549.72 = 485,967.76 : x
  2. Step 2: Convert to fraction form
    893,866.84/1,233,549.72 = 485,967.76/x
  3. Step 3: Cross multiply
    893,866.84x = 1,233,549.72 × 485,967.76
  4. Step 4: Simplify right side
    893,866.84x = 599,465,394,277.03
  5. Step 5: Solve for x
    x = 599,465,394,277.03/893,866.84
  6. Step 6: Final answer
    x = 670,642.84

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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.