Home / 723,579.42-998,599.38-401,393.40

Finding the Fourth Proportional to 723,579.42, 998,599.38 and 401,393.40

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Solution

The fourth proportional to 723,579.42, 998,599.38 and 401,393.40 is: 553,956.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,579.42 : 998,599.38 = 401,393.40 : x
  2. Step 2: Convert to fraction form
    723,579.42/998,599.38 = 401,393.40/x
  3. Step 3: Cross multiply
    723,579.42x = 998,599.38 × 401,393.40
  4. Step 4: Simplify right side
    723,579.42x = 400,831,200,376.09
  5. Step 5: Solve for x
    x = 400,831,200,376.09/723,579.42
  6. Step 6: Final answer
    x = 553,956.05

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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.