Home / 979,845.39-1,352,208.02-538,325.66

Finding the Fourth Proportional to 979,845.39, 1,352,208.02 and 538,325.66

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Solution

The fourth proportional to 979,845.39, 1,352,208.02 and 538,325.66 is: 742,901.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,845.39 : 1,352,208.02 = 538,325.66 : x
  2. Step 2: Convert to fraction form
    979,845.39/1,352,208.02 = 538,325.66/x
  3. Step 3: Cross multiply
    979,845.39x = 1,352,208.02 × 538,325.66
  4. Step 4: Simplify right side
    979,845.39x = 727,928,265,371.13
  5. Step 5: Solve for x
    x = 727,928,265,371.13/979,845.39
  6. Step 6: Final answer
    x = 742,901.15

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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.