Home / 459,772.34-634,390.69-268,748.78

Finding the Fourth Proportional to 459,772.34, 634,390.69 and 268,748.78

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Solution

The fourth proportional to 459,772.34, 634,390.69 and 268,748.78 is: 370,817.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,772.34 : 634,390.69 = 268,748.78 : x
  2. Step 2: Convert to fraction form
    459,772.34/634,390.69 = 268,748.78/x
  3. Step 3: Cross multiply
    459,772.34x = 634,390.69 × 268,748.78
  4. Step 4: Simplify right side
    459,772.34x = 170,491,723,980.86
  5. Step 5: Solve for x
    x = 170,491,723,980.86/459,772.34
  6. Step 6: Final answer
    x = 370,817.71

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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.