Home / 645,170.50-890,335.29-362,546.50

Finding the Fourth Proportional to 645,170.50, 890,335.29 and 362,546.50

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Solution

The fourth proportional to 645,170.50, 890,335.29 and 362,546.50 is: 500,314.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,170.50 : 890,335.29 = 362,546.50 : x
  2. Step 2: Convert to fraction form
    645,170.50/890,335.29 = 362,546.50/x
  3. Step 3: Cross multiply
    645,170.50x = 890,335.29 × 362,546.50
  4. Step 4: Simplify right side
    645,170.50x = 322,787,943,215.99
  5. Step 5: Solve for x
    x = 322,787,943,215.99/645,170.50
  6. Step 6: Final answer
    x = 500,314.17

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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.