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Finding the Fourth Proportional to 642,471.48, 963,716.94 and 243,300.24

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Solution

The fourth proportional to 642,471.48, 963,716.94 and 243,300.24 is: 364,954.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,471.48 : 963,716.94 = 243,300.24 : x
  2. Step 2: Convert to fraction form
    642,471.48/963,716.94 = 243,300.24/x
  3. Step 3: Cross multiply
    642,471.48x = 963,716.94 × 243,300.24
  4. Step 4: Simplify right side
    642,471.48x = 234,472,562,794.07
  5. Step 5: Solve for x
    x = 234,472,562,794.07/642,471.48
  6. Step 6: Final answer
    x = 364,954.04

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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.