Home / 679,602.15-1,019,526.14-280,020.65

Finding the Fourth Proportional to 679,602.15, 1,019,526.14 and 280,020.65

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Solution

The fourth proportional to 679,602.15, 1,019,526.14 and 280,020.65 is: 420,081.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,602.15 : 1,019,526.14 = 280,020.65 : x
  2. Step 2: Convert to fraction form
    679,602.15/1,019,526.14 = 280,020.65/x
  3. Step 3: Cross multiply
    679,602.15x = 1,019,526.14 × 280,020.65
  4. Step 4: Simplify right side
    679,602.15x = 285,488,368,017.21
  5. Step 5: Solve for x
    x = 285,488,368,017.21/679,602.15
  6. Step 6: Final answer
    x = 420,081.61

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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.