Home / 487,832.00-731,743.90-381,305.56

Finding the Fourth Proportional to 487,832.00, 731,743.90 and 381,305.56

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Solution

The fourth proportional to 487,832.00, 731,743.90 and 381,305.56 is: 571,955.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,832.00 : 731,743.90 = 381,305.56 : x
  2. Step 2: Convert to fraction form
    487,832.00/731,743.90 = 381,305.56/x
  3. Step 3: Cross multiply
    487,832.00x = 731,743.90 × 381,305.56
  4. Step 4: Simplify right side
    487,832.00x = 279,018,018,699.79
  5. Step 5: Solve for x
    x = 279,018,018,699.79/487,832.00
  6. Step 6: Final answer
    x = 571,955.13

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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.