Home / 679,434.46-1,019,298.76-206,155.50

Finding the Fourth Proportional to 679,434.46, 1,019,298.76 and 206,155.50

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Solution

The fourth proportional to 679,434.46, 1,019,298.76 and 206,155.50 is: 309,277.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,434.46 : 1,019,298.76 = 206,155.50 : x
  2. Step 2: Convert to fraction form
    679,434.46/1,019,298.76 = 206,155.50/x
  3. Step 3: Cross multiply
    679,434.46x = 1,019,298.76 × 206,155.50
  4. Step 4: Simplify right side
    679,434.46x = 210,134,045,517.18
  5. Step 5: Solve for x
    x = 210,134,045,517.18/679,434.46
  6. Step 6: Final answer
    x = 309,277.87

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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.