Home / 642,150.61-963,542.45-300,617.19

Finding the Fourth Proportional to 642,150.61, 963,542.45 and 300,617.19

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Solution

The fourth proportional to 642,150.61, 963,542.45 and 300,617.19 is: 451,073.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,150.61 : 963,542.45 = 300,617.19 : x
  2. Step 2: Convert to fraction form
    642,150.61/963,542.45 = 300,617.19/x
  3. Step 3: Cross multiply
    642,150.61x = 963,542.45 × 300,617.19
  4. Step 4: Simplify right side
    642,150.61x = 289,657,422,261.63
  5. Step 5: Solve for x
    x = 289,657,422,261.63/642,150.61
  6. Step 6: Final answer
    x = 451,073.97

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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.