Home / 720,255.02-993,925.20-397,958.18

Finding the Fourth Proportional to 720,255.02, 993,925.20 and 397,958.18

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Solution

The fourth proportional to 720,255.02, 993,925.20 and 397,958.18 is: 549,167.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,255.02 : 993,925.20 = 397,958.18 : x
  2. Step 2: Convert to fraction form
    720,255.02/993,925.20 = 397,958.18/x
  3. Step 3: Cross multiply
    720,255.02x = 993,925.20 × 397,958.18
  4. Step 4: Simplify right side
    720,255.02x = 395,540,663,648.14
  5. Step 5: Solve for x
    x = 395,540,663,648.14/720,255.02
  6. Step 6: Final answer
    x = 549,167.52

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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.