Home / 551,888.13-761,668.55-306,897.15

Finding the Fourth Proportional to 551,888.13, 761,668.55 and 306,897.15

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Solution

The fourth proportional to 551,888.13, 761,668.55 and 306,897.15 is: 423,553.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,888.13 : 761,668.55 = 306,897.15 : x
  2. Step 2: Convert to fraction form
    551,888.13/761,668.55 = 306,897.15/x
  3. Step 3: Cross multiply
    551,888.13x = 761,668.55 × 306,897.15
  4. Step 4: Simplify right side
    551,888.13x = 233,753,905,705.15
  5. Step 5: Solve for x
    x = 233,753,905,705.15/551,888.13
  6. Step 6: Final answer
    x = 423,553.06

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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.