Home / 710,758.78-1,065,980.98-205,209.84

Finding the Fourth Proportional to 710,758.78, 1,065,980.98 and 205,209.84

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Solution

The fourth proportional to 710,758.78, 1,065,980.98 and 205,209.84 is: 307,769.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,758.78 : 1,065,980.98 = 205,209.84 : x
  2. Step 2: Convert to fraction form
    710,758.78/1,065,980.98 = 205,209.84/x
  3. Step 3: Cross multiply
    710,758.78x = 1,065,980.98 × 205,209.84
  4. Step 4: Simplify right side
    710,758.78x = 218,749,786,348.84
  5. Step 5: Solve for x
    x = 218,749,786,348.84/710,758.78
  6. Step 6: Final answer
    x = 307,769.38

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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.