Home / 328,302.13-492,453.20-78,984.13

Finding the Fourth Proportional to 328,302.13, 492,453.20 and 78,984.13

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Solution

The fourth proportional to 328,302.13, 492,453.20 and 78,984.13 is: 118,476.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,302.13 : 492,453.20 = 78,984.13 : x
  2. Step 2: Convert to fraction form
    328,302.13/492,453.20 = 78,984.13/x
  3. Step 3: Cross multiply
    328,302.13x = 492,453.20 × 78,984.13
  4. Step 4: Simplify right side
    328,302.13x = 38,895,987,567.72
  5. Step 5: Solve for x
    x = 38,895,987,567.72/328,302.13
  6. Step 6: Final answer
    x = 118,476.20

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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.