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Finding the Fourth Proportional to 634,893.64, 876,178.47 and 348,424.06

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Solution

The fourth proportional to 634,893.64, 876,178.47 and 348,424.06 is: 480,839.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,893.64 : 876,178.47 = 348,424.06 : x
  2. Step 2: Convert to fraction form
    634,893.64/876,178.47 = 348,424.06/x
  3. Step 3: Cross multiply
    634,893.64x = 876,178.47 × 348,424.06
  4. Step 4: Simplify right side
    634,893.64x = 305,281,659,801.99
  5. Step 5: Solve for x
    x = 305,281,659,801.99/634,893.64
  6. Step 6: Final answer
    x = 480,839.06

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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.