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Finding the Fourth Proportional to 680,672.76, 1,021,017.34 and 207,362.22

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Solution

The fourth proportional to 680,672.76, 1,021,017.34 and 207,362.22 is: 311,045.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,672.76 : 1,021,017.34 = 207,362.22 : x
  2. Step 2: Convert to fraction form
    680,672.76/1,021,017.34 = 207,362.22/x
  3. Step 3: Cross multiply
    680,672.76x = 1,021,017.34 × 207,362.22
  4. Step 4: Simplify right side
    680,672.76x = 211,720,421,762.49
  5. Step 5: Solve for x
    x = 211,720,421,762.49/680,672.76
  6. Step 6: Final answer
    x = 311,045.83

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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.