Home / 723,735.20-998,736.36-401,452.40

Finding the Fourth Proportional to 723,735.20, 998,736.36 and 401,452.40

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Solution

The fourth proportional to 723,735.20, 998,736.36 and 401,452.40 is: 553,994.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,735.20 : 998,736.36 = 401,452.40 : x
  2. Step 2: Convert to fraction form
    723,735.20/998,736.36 = 401,452.40/x
  3. Step 3: Cross multiply
    723,735.20x = 998,736.36 × 401,452.40
  4. Step 4: Simplify right side
    723,735.20x = 400,945,108,689.26
  5. Step 5: Solve for x
    x = 400,945,108,689.26/723,735.20
  6. Step 6: Final answer
    x = 553,994.21

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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.