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Finding the Fourth Proportional to 693,865.02, 957,535.32 and 387,952.32

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Solution

The fourth proportional to 693,865.02, 957,535.32 and 387,952.32 is: 535,375.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,865.02 : 957,535.32 = 387,952.32 : x
  2. Step 2: Convert to fraction form
    693,865.02/957,535.32 = 387,952.32/x
  3. Step 3: Cross multiply
    693,865.02x = 957,535.32 × 387,952.32
  4. Step 4: Simplify right side
    693,865.02x = 371,478,048,875.94
  5. Step 5: Solve for x
    x = 371,478,048,875.94/693,865.02
  6. Step 6: Final answer
    x = 535,375.09

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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.