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Finding the Fourth Proportional to 720,845.28, 994,548 and 503,048.16

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Solution

The fourth proportional to 720,845.28, 994,548 and 503,048.16 is: 694,053.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,845.28 : 994,548 = 503,048.16 : x
  2. Step 2: Convert to fraction form
    720,845.28/994,548 = 503,048.16/x
  3. Step 3: Cross multiply
    720,845.28x = 994,548 × 503,048.16
  4. Step 4: Simplify right side
    720,845.28x = 500,305,541,431.68
  5. Step 5: Solve for x
    x = 500,305,541,431.68/720,845.28
  6. Step 6: Final answer
    x = 694,053.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.