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Finding the Fourth Proportional to 634,876.16, 876,154.37 and 348,406.49

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Solution

The fourth proportional to 634,876.16, 876,154.37 and 348,406.49 is: 480,814.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,876.16 : 876,154.37 = 348,406.49 : x
  2. Step 2: Convert to fraction form
    634,876.16/876,154.37 = 348,406.49/x
  3. Step 3: Cross multiply
    634,876.16x = 876,154.37 × 348,406.49
  4. Step 4: Simplify right side
    634,876.16x = 305,257,869,198.22
  5. Step 5: Solve for x
    x = 305,257,869,198.22/634,876.16
  6. Step 6: Final answer
    x = 480,814.83

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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.