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Finding the Fourth Proportional to 384,513.80, 575,409.90 and 335,136.20

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Solution

The fourth proportional to 384,513.80, 575,409.90 and 335,136.20 is: 501,518.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,513.80 : 575,409.90 = 335,136.20 : x
  2. Step 2: Convert to fraction form
    384,513.80/575,409.90 = 335,136.20/x
  3. Step 3: Cross multiply
    384,513.80x = 575,409.90 × 335,136.20
  4. Step 4: Simplify right side
    384,513.80x = 192,840,687,328.38
  5. Step 5: Solve for x
    x = 192,840,687,328.38/384,513.80
  6. Step 6: Final answer
    x = 501,518.25

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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.