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Finding the Fourth Proportional to 436,220.66, 602,443.44 and 388,670.73

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Solution

The fourth proportional to 436,220.66, 602,443.44 and 388,670.73 is: 536,774.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,220.66 : 602,443.44 = 388,670.73 : x
  2. Step 2: Convert to fraction form
    436,220.66/602,443.44 = 388,670.73/x
  3. Step 3: Cross multiply
    436,220.66x = 602,443.44 × 388,670.73
  4. Step 4: Simplify right side
    436,220.66x = 234,152,131,608.51
  5. Step 5: Solve for x
    x = 234,152,131,608.51/436,220.66
  6. Step 6: Final answer
    x = 536,774.51

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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.