Home / 680,461.50-1,020,839.76-207,134.50

Finding the Fourth Proportional to 680,461.50, 1,020,839.76 and 207,134.50

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Solution

The fourth proportional to 680,461.50, 1,020,839.76 and 207,134.50 is: 310,746.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,461.50 : 1,020,839.76 = 207,134.50 : x
  2. Step 2: Convert to fraction form
    680,461.50/1,020,839.76 = 207,134.50/x
  3. Step 3: Cross multiply
    680,461.50x = 1,020,839.76 × 207,134.50
  4. Step 4: Simplify right side
    680,461.50x = 211,451,133,267.72
  5. Step 5: Solve for x
    x = 211,451,133,267.72/680,461.50
  6. Step 6: Final answer
    x = 310,746.65

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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.