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Finding the Fourth Proportional to 663,065.40, 994,727.70 and 283,985.40

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Solution

The fourth proportional to 663,065.40, 994,727.70 and 283,985.40 is: 426,033.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,065.40 : 994,727.70 = 283,985.40 : x
  2. Step 2: Convert to fraction form
    663,065.40/994,727.70 = 283,985.40/x
  3. Step 3: Cross multiply
    663,065.40x = 994,727.70 × 283,985.40
  4. Step 4: Simplify right side
    663,065.40x = 282,488,143,775.58
  5. Step 5: Solve for x
    x = 282,488,143,775.58/663,065.40
  6. Step 6: Final answer
    x = 426,033.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.