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Finding the Fourth Proportional to 436,611.96, 655,112.34 and 429,526.08

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Solution

The fourth proportional to 436,611.96, 655,112.34 and 429,526.08 is: 644,480.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,611.96 : 655,112.34 = 429,526.08 : x
  2. Step 2: Convert to fraction form
    436,611.96/655,112.34 = 429,526.08/x
  3. Step 3: Cross multiply
    436,611.96x = 655,112.34 × 429,526.08
  4. Step 4: Simplify right side
    436,611.96x = 281,387,835,359.83
  5. Step 5: Solve for x
    x = 281,387,835,359.83/436,611.96
  6. Step 6: Final answer
    x = 644,480.37

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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.