Home / 723,444.53-998,304.78-401,142.69

Finding the Fourth Proportional to 723,444.53, 998,304.78 and 401,142.69

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Solution

The fourth proportional to 723,444.53, 998,304.78 and 401,142.69 is: 553,549.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,444.53 : 998,304.78 = 401,142.69 : x
  2. Step 2: Convert to fraction form
    723,444.53/998,304.78 = 401,142.69/x
  3. Step 3: Cross multiply
    723,444.53x = 998,304.78 × 401,142.69
  4. Step 4: Simplify right side
    723,444.53x = 400,462,664,889.06
  5. Step 5: Solve for x
    x = 400,462,664,889.06/723,444.53
  6. Step 6: Final answer
    x = 553,549.93

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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.