Home / 559,134.39-771,637.89-421,066.15

Finding the Fourth Proportional to 559,134.39, 771,637.89 and 421,066.15

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Solution

The fourth proportional to 559,134.39, 771,637.89 and 421,066.15 is: 581,095.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,134.39 : 771,637.89 = 421,066.15 : x
  2. Step 2: Convert to fraction form
    559,134.39/771,637.89 = 421,066.15/x
  3. Step 3: Cross multiply
    559,134.39x = 771,637.89 × 421,066.15
  4. Step 4: Simplify right side
    559,134.39x = 324,910,595,186.33
  5. Step 5: Solve for x
    x = 324,910,595,186.33/559,134.39
  6. Step 6: Final answer
    x = 581,095.71

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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.