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Finding the Fourth Proportional to 635,041.76, 876,655.78 and 425,845.76

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Solution

The fourth proportional to 635,041.76, 876,655.78 and 425,845.76 is: 587,867.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,041.76 : 876,655.78 = 425,845.76 : x
  2. Step 2: Convert to fraction form
    635,041.76/876,655.78 = 425,845.76/x
  3. Step 3: Cross multiply
    635,041.76x = 876,655.78 × 425,845.76
  4. Step 4: Simplify right side
    635,041.76x = 373,320,141,444.60
  5. Step 5: Solve for x
    x = 373,320,141,444.60/635,041.76
  6. Step 6: Final answer
    x = 587,867.08

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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.