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Finding the Fourth Proportional to 720,739.84, 994,719.90 and 414,810.04

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Solution

The fourth proportional to 720,739.84, 994,719.90 and 414,810.04 is: 572,494.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,739.84 : 994,719.90 = 414,810.04 : x
  2. Step 2: Convert to fraction form
    720,739.84/994,719.90 = 414,810.04/x
  3. Step 3: Cross multiply
    720,739.84x = 994,719.90 × 414,810.04
  4. Step 4: Simplify right side
    720,739.84x = 412,619,801,507.80
  5. Step 5: Solve for x
    x = 412,619,801,507.80/720,739.84
  6. Step 6: Final answer
    x = 572,494.79

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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.