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Finding the Fourth Proportional to 713,593.70, 1,070,390.55 and 293,171.30

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Solution

The fourth proportional to 713,593.70, 1,070,390.55 and 293,171.30 is: 439,756.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,593.70 : 1,070,390.55 = 293,171.30 : x
  2. Step 2: Convert to fraction form
    713,593.70/1,070,390.55 = 293,171.30/x
  3. Step 3: Cross multiply
    713,593.70x = 1,070,390.55 × 293,171.30
  4. Step 4: Simplify right side
    713,593.70x = 313,807,789,051.22
  5. Step 5: Solve for x
    x = 313,807,789,051.22/713,593.70
  6. Step 6: Final answer
    x = 439,756.95

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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.