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Finding the Fourth Proportional to 720,623.94, 994,559.82 and 414,694.04

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Solution

The fourth proportional to 720,623.94, 994,559.82 and 414,694.04 is: 572,334.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,623.94 : 994,559.82 = 414,694.04 : x
  2. Step 2: Convert to fraction form
    720,623.94/994,559.82 = 414,694.04/x
  3. Step 3: Cross multiply
    720,623.94x = 994,559.82 × 414,694.04
  4. Step 4: Simplify right side
    720,623.94x = 412,438,029,777.47
  5. Step 5: Solve for x
    x = 412,438,029,777.47/720,623.94
  6. Step 6: Final answer
    x = 572,334.62

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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.