Home / 722,200.08-996,623.95-399,903.29

Finding the Fourth Proportional to 722,200.08, 996,623.95 and 399,903.29

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Solution

The fourth proportional to 722,200.08, 996,623.95 and 399,903.29 is: 551,859.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,200.08 : 996,623.95 = 399,903.29 : x
  2. Step 2: Convert to fraction form
    722,200.08/996,623.95 = 399,903.29/x
  3. Step 3: Cross multiply
    722,200.08x = 996,623.95 × 399,903.29
  4. Step 4: Simplify right side
    722,200.08x = 398,553,196,497.80
  5. Step 5: Solve for x
    x = 398,553,196,497.80/722,200.08
  6. Step 6: Final answer
    x = 551,859.81

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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.