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Finding the Fourth Proportional to 602,667.12, 831,651.96 and 330,728.88

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Solution

The fourth proportional to 602,667.12, 831,651.96 and 330,728.88 is: 456,390.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,667.12 : 831,651.96 = 330,728.88 : x
  2. Step 2: Convert to fraction form
    602,667.12/831,651.96 = 330,728.88/x
  3. Step 3: Cross multiply
    602,667.12x = 831,651.96 × 330,728.88
  4. Step 4: Simplify right side
    602,667.12x = 275,051,321,280.61
  5. Step 5: Solve for x
    x = 275,051,321,280.61/602,667.12
  6. Step 6: Final answer
    x = 456,390.12

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1.5x scale

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.