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Finding the Fourth Proportional to 617,671.95, 926,667.63 and 361,720.65

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Solution

The fourth proportional to 617,671.95, 926,667.63 and 361,720.65 is: 542,674.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,671.95 : 926,667.63 = 361,720.65 : x
  2. Step 2: Convert to fraction form
    617,671.95/926,667.63 = 361,720.65/x
  3. Step 3: Cross multiply
    617,671.95x = 926,667.63 × 361,720.65
  4. Step 4: Simplify right side
    617,671.95x = 335,194,817,457.56
  5. Step 5: Solve for x
    x = 335,194,817,457.56/617,671.95
  6. Step 6: Final answer
    x = 542,674.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.