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Finding the Fourth Proportional to 634,777.65, 875,994.21 and 348,299.91

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Solution

The fourth proportional to 634,777.65, 875,994.21 and 348,299.91 is: 480,654.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,777.65 : 875,994.21 = 348,299.91 : x
  2. Step 2: Convert to fraction form
    634,777.65/875,994.21 = 348,299.91/x
  3. Step 3: Cross multiply
    634,777.65x = 875,994.21 × 348,299.91
  4. Step 4: Simplify right side
    634,777.65x = 305,108,704,503.52
  5. Step 5: Solve for x
    x = 305,108,704,503.52/634,777.65
  6. Step 6: Final answer
    x = 480,654.45

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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.