Home / 724,960.12-1,087,889.25-421,497.10

Finding the Fourth Proportional to 724,960.12, 1,087,889.25 and 421,497.10

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Solution

The fourth proportional to 724,960.12, 1,087,889.25 and 421,497.10 is: 632,506.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,960.12 : 1,087,889.25 = 421,497.10 : x
  2. Step 2: Convert to fraction form
    724,960.12/1,087,889.25 = 421,497.10/x
  3. Step 3: Cross multiply
    724,960.12x = 1,087,889.25 × 421,497.10
  4. Step 4: Simplify right side
    724,960.12x = 458,542,163,996.18
  5. Step 5: Solve for x
    x = 458,542,163,996.18/724,960.12
  6. Step 6: Final answer
    x = 632,506.74

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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.