Home / 720,032.20-993,625.18-397,735.36

Finding the Fourth Proportional to 720,032.20, 993,625.18 and 397,735.36

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Solution

The fourth proportional to 720,032.20, 993,625.18 and 397,735.36 is: 548,864.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,032.20 : 993,625.18 = 397,735.36 : x
  2. Step 2: Convert to fraction form
    720,032.20/993,625.18 = 397,735.36/x
  3. Step 3: Cross multiply
    720,032.20x = 993,625.18 × 397,735.36
  4. Step 4: Simplify right side
    720,032.20x = 395,199,868,672.37
  5. Step 5: Solve for x
    x = 395,199,868,672.37/720,032.20
  6. Step 6: Final answer
    x = 548,864.16

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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.