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Finding the Fourth Proportional to 634,658.60, 875,884.20 and 348,234.68

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Solution

The fourth proportional to 634,658.60, 875,884.20 and 348,234.68 is: 480,594.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,658.60 : 875,884.20 = 348,234.68 : x
  2. Step 2: Convert to fraction form
    634,658.60/875,884.20 = 348,234.68/x
  3. Step 3: Cross multiply
    634,658.60x = 875,884.20 × 348,234.68
  4. Step 4: Simplify right side
    634,658.60x = 305,013,254,104.06
  5. Step 5: Solve for x
    x = 305,013,254,104.06/634,658.60
  6. Step 6: Final answer
    x = 480,594.22

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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.