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Finding the Fourth Proportional to 900,756.75, 1,350,372 and 394,934.37

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Solution

The fourth proportional to 900,756.75, 1,350,372 and 394,934.37 is: 592,066.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,756.75 : 1,350,372 = 394,934.37 : x
  2. Step 2: Convert to fraction form
    900,756.75/1,350,372 = 394,934.37/x
  3. Step 3: Cross multiply
    900,756.75x = 1,350,372 × 394,934.37
  4. Step 4: Simplify right side
    900,756.75x = 533,308,315,085.64
  5. Step 5: Solve for x
    x = 533,308,315,085.64/900,756.75
  6. Step 6: Final answer
    x = 592,066.96

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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.