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Finding the Fourth Proportional to 723,611.17, 998,422.46 and 417,622.69

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Solution

The fourth proportional to 723,611.17, 998,422.46 and 417,622.69 is: 576,226.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,611.17 : 998,422.46 = 417,622.69 : x
  2. Step 2: Convert to fraction form
    723,611.17/998,422.46 = 417,622.69/x
  3. Step 3: Cross multiply
    723,611.17x = 998,422.46 × 417,622.69
  4. Step 4: Simplify right side
    723,611.17x = 416,963,868,509.51
  5. Step 5: Solve for x
    x = 416,963,868,509.51/723,611.17
  6. Step 6: Final answer
    x = 576,226.42

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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.