Home / 876,796.15-1,209,857.29-489,564.31

Finding the Fourth Proportional to 876,796.15, 1,209,857.29 and 489,564.31

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Solution

The fourth proportional to 876,796.15, 1,209,857.29 and 489,564.31 is: 675,530.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,796.15 : 1,209,857.29 = 489,564.31 : x
  2. Step 2: Convert to fraction form
    876,796.15/1,209,857.29 = 489,564.31/x
  3. Step 3: Cross multiply
    876,796.15x = 1,209,857.29 × 489,564.31
  4. Step 4: Simplify right side
    876,796.15x = 592,302,949,377.32
  5. Step 5: Solve for x
    x = 592,302,949,377.32/876,796.15
  6. Step 6: Final answer
    x = 675,530.97

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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.