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Finding the Fourth Proportional to 328,989.62, 493,482.80 and 79,671.62

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Solution

The fourth proportional to 328,989.62, 493,482.80 and 79,671.62 is: 119,507.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,989.62 : 493,482.80 = 79,671.62 : x
  2. Step 2: Convert to fraction form
    328,989.62/493,482.80 = 79,671.62/x
  3. Step 3: Cross multiply
    328,989.62x = 493,482.80 × 79,671.62
  4. Step 4: Simplify right side
    328,989.62x = 39,316,574,118.14
  5. Step 5: Solve for x
    x = 39,316,574,118.14/328,989.62
  6. Step 6: Final answer
    x = 119,507.04

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1.5x scale

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.