Home / 720,247.04-993,948.54-397,949.12

Finding the Fourth Proportional to 720,247.04, 993,948.54 and 397,949.12

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Solution

The fourth proportional to 720,247.04, 993,948.54 and 397,949.12 is: 549,174.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,247.04 : 993,948.54 = 397,949.12 : x
  2. Step 2: Convert to fraction form
    720,247.04/993,948.54 = 397,949.12/x
  3. Step 3: Cross multiply
    720,247.04x = 993,948.54 × 397,949.12
  4. Step 4: Simplify right side
    720,247.04x = 395,540,946,818.29
  5. Step 5: Solve for x
    x = 395,540,946,818.29/720,247.04
  6. Step 6: Final answer
    x = 549,174.00

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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.