Home / 740,732.45-1,111,100.10-285,538.04

Finding the Fourth Proportional to 740,732.45, 1,111,100.10 and 285,538.04

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Solution

The fourth proportional to 740,732.45, 1,111,100.10 and 285,538.04 is: 428,307.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,732.45 : 1,111,100.10 = 285,538.04 : x
  2. Step 2: Convert to fraction form
    740,732.45/1,111,100.10 = 285,538.04/x
  3. Step 3: Cross multiply
    740,732.45x = 1,111,100.10 × 285,538.04
  4. Step 4: Simplify right side
    740,732.45x = 317,261,337,814.61
  5. Step 5: Solve for x
    x = 317,261,337,814.61/740,732.45
  6. Step 6: Final answer
    x = 428,307.60

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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.