Home / 680,702.76-1,021,206.42-207,425.16

Finding the Fourth Proportional to 680,702.76, 1,021,206.42 and 207,425.16

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Solution

The fourth proportional to 680,702.76, 1,021,206.42 and 207,425.16 is: 311,184.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,702.76 : 1,021,206.42 = 207,425.16 : x
  2. Step 2: Convert to fraction form
    680,702.76/1,021,206.42 = 207,425.16/x
  3. Step 3: Cross multiply
    680,702.76x = 1,021,206.42 × 207,425.16
  4. Step 4: Simplify right side
    680,702.76x = 211,823,905,061.53
  5. Step 5: Solve for x
    x = 211,823,905,061.53/680,702.76
  6. Step 6: Final answer
    x = 311,184.14

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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.