Home / 720,238.02-993,901.77-397,941.18

Finding the Fourth Proportional to 720,238.02, 993,901.77 and 397,941.18

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Solution

The fourth proportional to 720,238.02, 993,901.77 and 397,941.18 is: 549,144.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,238.02 : 993,901.77 = 397,941.18 : x
  2. Step 2: Convert to fraction form
    720,238.02/993,901.77 = 397,941.18/x
  3. Step 3: Cross multiply
    720,238.02x = 993,901.77 × 397,941.18
  4. Step 4: Simplify right side
    720,238.02x = 395,514,443,157.89
  5. Step 5: Solve for x
    x = 395,514,443,157.89/720,238.02
  6. Step 6: Final answer
    x = 549,144.08

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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.