Home / 889,306.47-1,333,962.86-215,388.22

Finding the Fourth Proportional to 889,306.47, 1,333,962.86 and 215,388.22

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Solution

The fourth proportional to 889,306.47, 1,333,962.86 and 215,388.22 is: 323,083.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,306.47 : 1,333,962.86 = 215,388.22 : x
  2. Step 2: Convert to fraction form
    889,306.47/1,333,962.86 = 215,388.22/x
  3. Step 3: Cross multiply
    889,306.47x = 1,333,962.86 × 215,388.22
  4. Step 4: Simplify right side
    889,306.47x = 287,319,885,961.51
  5. Step 5: Solve for x
    x = 287,319,885,961.51/889,306.47
  6. Step 6: Final answer
    x = 323,083.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.