Home / 1,205,276.82-1,663,329.98-661,432.07

Finding the Fourth Proportional to 1,205,276.82, 1,663,329.98 and 661,432.07

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Solution

The fourth proportional to 1,205,276.82, 1,663,329.98 and 661,432.07 is: 912,802.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,276.82 : 1,663,329.98 = 661,432.07 : x
  2. Step 2: Convert to fraction form
    1,205,276.82/1,663,329.98 = 661,432.07/x
  3. Step 3: Cross multiply
    1,205,276.82x = 1,663,329.98 × 661,432.07
  4. Step 4: Simplify right side
    1,205,276.82x = 1,100,179,785,101.39
  5. Step 5: Solve for x
    x = 1,100,179,785,101.39/1,205,276.82
  6. Step 6: Final answer
    x = 912,802.58

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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.