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Finding the Fourth Proportional to 720,443.71, 994,184.60 and 414,618.33

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Solution

The fourth proportional to 720,443.71, 994,184.60 and 414,618.33 is: 572,157.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,443.71 : 994,184.60 = 414,618.33 : x
  2. Step 2: Convert to fraction form
    720,443.71/994,184.60 = 414,618.33/x
  3. Step 3: Cross multiply
    720,443.71x = 994,184.60 × 414,618.33
  4. Step 4: Simplify right side
    720,443.71x = 412,207,160,218.82
  5. Step 5: Solve for x
    x = 412,207,160,218.82/720,443.71
  6. Step 6: Final answer
    x = 572,157.34

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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.