Home / 639,281.70-958,922.55-401,336.10

Finding the Fourth Proportional to 639,281.70, 958,922.55 and 401,336.10

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Solution

The fourth proportional to 639,281.70, 958,922.55 and 401,336.10 is: 602,004.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,281.70 : 958,922.55 = 401,336.10 : x
  2. Step 2: Convert to fraction form
    639,281.70/958,922.55 = 401,336.10/x
  3. Step 3: Cross multiply
    639,281.70x = 958,922.55 × 401,336.10
  4. Step 4: Simplify right side
    639,281.70x = 384,850,236,419.06
  5. Step 5: Solve for x
    x = 384,850,236,419.06/639,281.70
  6. Step 6: Final answer
    x = 602,004.15

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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.