Home / 642,247.40-962,334.30-405,165.80

Finding the Fourth Proportional to 642,247.40, 962,334.30 and 405,165.80

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Solution

The fourth proportional to 642,247.40, 962,334.30 and 405,165.80 is: 607,094.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,247.40 : 962,334.30 = 405,165.80 : x
  2. Step 2: Convert to fraction form
    642,247.40/962,334.30 = 405,165.80/x
  3. Step 3: Cross multiply
    642,247.40x = 962,334.30 × 405,165.80
  4. Step 4: Simplify right side
    642,247.40x = 389,904,946,526.94
  5. Step 5: Solve for x
    x = 389,904,946,526.94/642,247.40
  6. Step 6: Final answer
    x = 607,094.63

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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.