Home / 723,623.97-998,674.02-401,396.91

Finding the Fourth Proportional to 723,623.97, 998,674.02 and 401,396.91

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Solution

The fourth proportional to 723,623.97, 998,674.02 and 401,396.91 is: 553,968.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,623.97 : 998,674.02 = 401,396.91 : x
  2. Step 2: Convert to fraction form
    723,623.97/998,674.02 = 401,396.91/x
  3. Step 3: Cross multiply
    723,623.97x = 998,674.02 × 401,396.91
  4. Step 4: Simplify right side
    723,623.97x = 400,864,665,725.28
  5. Step 5: Solve for x
    x = 400,864,665,725.28/723,623.97
  6. Step 6: Final answer
    x = 553,968.20

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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.