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Finding the Fourth Proportional to 628,759.89, 867,808.24 and 356,853.24

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Solution

The fourth proportional to 628,759.89, 867,808.24 and 356,853.24 is: 492,525.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,759.89 : 867,808.24 = 356,853.24 : x
  2. Step 2: Convert to fraction form
    628,759.89/867,808.24 = 356,853.24/x
  3. Step 3: Cross multiply
    628,759.89x = 867,808.24 × 356,853.24
  4. Step 4: Simplify right side
    628,759.89x = 309,680,181,250.57
  5. Step 5: Solve for x
    x = 309,680,181,250.57/628,759.89
  6. Step 6: Final answer
    x = 492,525.34

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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.