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Finding the Fourth Proportional to 712,770.84, 1,069,315.83 and 239,443.29

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Solution

The fourth proportional to 712,770.84, 1,069,315.83 and 239,443.29 is: 359,218.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,770.84 : 1,069,315.83 = 239,443.29 : x
  2. Step 2: Convert to fraction form
    712,770.84/1,069,315.83 = 239,443.29/x
  3. Step 3: Cross multiply
    712,770.84x = 1,069,315.83 × 239,443.29
  4. Step 4: Simplify right side
    712,770.84x = 256,040,500,384.28
  5. Step 5: Solve for x
    x = 256,040,500,384.28/712,770.84
  6. Step 6: Final answer
    x = 359,218.54

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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.