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Finding the Fourth Proportional to 720,679.92, 994,490.88 and 414,706.92

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Solution

The fourth proportional to 720,679.92, 994,490.88 and 414,706.92 is: 572,268.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,679.92 : 994,490.88 = 414,706.92 : x
  2. Step 2: Convert to fraction form
    720,679.92/994,490.88 = 414,706.92/x
  3. Step 3: Cross multiply
    720,679.92x = 994,490.88 × 414,706.92
  4. Step 4: Simplify right side
    720,679.92x = 412,422,249,812.89
  5. Step 5: Solve for x
    x = 412,422,249,812.89/720,679.92
  6. Step 6: Final answer
    x = 572,268.27

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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.