Home / 679,717.86-1,019,510.57-206,407.32

Finding the Fourth Proportional to 679,717.86, 1,019,510.57 and 206,407.32

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Solution

The fourth proportional to 679,717.86, 1,019,510.57 and 206,407.32 is: 309,590.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,717.86 : 1,019,510.57 = 206,407.32 : x
  2. Step 2: Convert to fraction form
    679,717.86/1,019,510.57 = 206,407.32/x
  3. Step 3: Cross multiply
    679,717.86x = 1,019,510.57 × 206,407.32
  4. Step 4: Simplify right side
    679,717.86x = 210,434,443,433.34
  5. Step 5: Solve for x
    x = 210,434,443,433.34/679,717.86
  6. Step 6: Final answer
    x = 309,590.87

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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.