Home / 723,620.40-998,657.46-401,434.29

Finding the Fourth Proportional to 723,620.40, 998,657.46 and 401,434.29

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Solution

The fourth proportional to 723,620.40, 998,657.46 and 401,434.29 is: 554,013.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,620.40 : 998,657.46 = 401,434.29 : x
  2. Step 2: Convert to fraction form
    723,620.40/998,657.46 = 401,434.29/x
  3. Step 3: Cross multiply
    723,620.40x = 998,657.46 × 401,434.29
  4. Step 4: Simplify right side
    723,620.40x = 400,895,348,408.30
  5. Step 5: Solve for x
    x = 400,895,348,408.30/723,620.40
  6. Step 6: Final answer
    x = 554,013.33

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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.