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Finding the Fourth Proportional to 634,558.59, 875,690.91 and 348,079.41

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Solution

The fourth proportional to 634,558.59, 875,690.91 and 348,079.41 is: 480,349.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,558.59 : 875,690.91 = 348,079.41 : x
  2. Step 2: Convert to fraction form
    634,558.59/875,690.91 = 348,079.41/x
  3. Step 3: Cross multiply
    634,558.59x = 875,690.91 × 348,079.41
  4. Step 4: Simplify right side
    634,558.59x = 304,809,978,579.00
  5. Step 5: Solve for x
    x = 304,809,978,579.00/634,558.59
  6. Step 6: Final answer
    x = 480,349.62

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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.