Home / 680,784.10-1,021,214.55-207,484.90

Finding the Fourth Proportional to 680,784.10, 1,021,214.55 and 207,484.90

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Solution

The fourth proportional to 680,784.10, 1,021,214.55 and 207,484.90 is: 311,239.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,784.10 : 1,021,214.55 = 207,484.90 : x
  2. Step 2: Convert to fraction form
    680,784.10/1,021,214.55 = 207,484.90/x
  3. Step 3: Cross multiply
    680,784.10x = 1,021,214.55 × 207,484.90
  4. Step 4: Simplify right side
    680,784.10x = 211,886,598,785.30
  5. Step 5: Solve for x
    x = 211,886,598,785.30/680,784.10
  6. Step 6: Final answer
    x = 311,239.05

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1.5x scale

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.