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Finding the Fourth Proportional to 693,497.70, 957,007.80 and 387,575.37

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Solution

The fourth proportional to 693,497.70, 957,007.80 and 387,575.37 is: 534,843.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,497.70 : 957,007.80 = 387,575.37 : x
  2. Step 2: Convert to fraction form
    693,497.70/957,007.80 = 387,575.37/x
  3. Step 3: Cross multiply
    693,497.70x = 957,007.80 × 387,575.37
  4. Step 4: Simplify right side
    693,497.70x = 370,912,652,177.89
  5. Step 5: Solve for x
    x = 370,912,652,177.89/693,497.70
  6. Step 6: Final answer
    x = 534,843.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.