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Finding the Fourth Proportional to 720,032.14, 993,625.10 and 397,735.30

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Solution

The fourth proportional to 720,032.14, 993,625.10 and 397,735.30 is: 548,864.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,032.14 : 993,625.10 = 397,735.30 : x
  2. Step 2: Convert to fraction form
    720,032.14/993,625.10 = 397,735.30/x
  3. Step 3: Cross multiply
    720,032.14x = 993,625.10 × 397,735.30
  4. Step 4: Simplify right side
    720,032.14x = 395,199,775,247.35
  5. Step 5: Solve for x
    x = 395,199,775,247.35/720,032.14
  6. Step 6: Final answer
    x = 548,864.08

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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.