Home / 494,724-742,206.78-157,764.66

Finding the Fourth Proportional to 494,724, 742,206.78 and 157,764.66

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Solution

The fourth proportional to 494,724, 742,206.78 and 157,764.66 is: 236,685.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,724 : 742,206.78 = 157,764.66 : x
  2. Step 2: Convert to fraction form
    494,724/742,206.78 = 157,764.66/x
  3. Step 3: Cross multiply
    494,724x = 742,206.78 × 157,764.66
  4. Step 4: Simplify right side
    494,724x = 117,094,000,296.40
  5. Step 5: Solve for x
    x = 117,094,000,296.40/494,724
  6. Step 6: Final answer
    x = 236,685.51

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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.