Home / 642,004.20-962,315.10-242,490.60

Finding the Fourth Proportional to 642,004.20, 962,315.10 and 242,490.60

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Solution

The fourth proportional to 642,004.20, 962,315.10 and 242,490.60 is: 363,474.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,004.20 : 962,315.10 = 242,490.60 : x
  2. Step 2: Convert to fraction form
    642,004.20/962,315.10 = 242,490.60/x
  3. Step 3: Cross multiply
    642,004.20x = 962,315.10 × 242,490.60
  4. Step 4: Simplify right side
    642,004.20x = 233,352,365,988.06
  5. Step 5: Solve for x
    x = 233,352,365,988.06/642,004.20
  6. Step 6: Final answer
    x = 363,474.83

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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.