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Finding the Fourth Proportional to 634,648.99, 875,944.53 and 430,765.61

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Solution

The fourth proportional to 634,648.99, 875,944.53 and 430,765.61 is: 594,544.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,648.99 : 875,944.53 = 430,765.61 : x
  2. Step 2: Convert to fraction form
    634,648.99/875,944.53 = 430,765.61/x
  3. Step 3: Cross multiply
    634,648.99x = 875,944.53 × 430,765.61
  4. Step 4: Simplify right side
    634,648.99x = 377,326,777,637.79
  5. Step 5: Solve for x
    x = 377,326,777,637.79/634,648.99
  6. Step 6: Final answer
    x = 594,544.04

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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.