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Finding the Fourth Proportional to 494,637.56, 742,073.30 and 393,816.84

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Solution

The fourth proportional to 494,637.56, 742,073.30 and 393,816.84 is: 590,818.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,637.56 : 742,073.30 = 393,816.84 : x
  2. Step 2: Convert to fraction form
    494,637.56/742,073.30 = 393,816.84/x
  3. Step 3: Cross multiply
    494,637.56x = 742,073.30 × 393,816.84
  4. Step 4: Simplify right side
    494,637.56x = 292,240,962,054.37
  5. Step 5: Solve for x
    x = 292,240,962,054.37/494,637.56
  6. Step 6: Final answer
    x = 590,818.38

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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.