Home / 679,521.72-1,019,288.71-206,207.07

Finding the Fourth Proportional to 679,521.72, 1,019,288.71 and 206,207.07

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Solution

The fourth proportional to 679,521.72, 1,019,288.71 and 206,207.07 is: 309,312.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,521.72 : 1,019,288.71 = 206,207.07 : x
  2. Step 2: Convert to fraction form
    679,521.72/1,019,288.71 = 206,207.07/x
  3. Step 3: Cross multiply
    679,521.72x = 1,019,288.71 × 206,207.07
  4. Step 4: Simplify right side
    679,521.72x = 210,184,534,808.61
  5. Step 5: Solve for x
    x = 210,184,534,808.61/679,521.72
  6. Step 6: Final answer
    x = 309,312.46

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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.