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Finding the Fourth Proportional to 693,660, 957,250.80 and 375,708

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Solution

The fourth proportional to 693,660, 957,250.80 and 375,708 is: 518,477.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,660 : 957,250.80 = 375,708 : x
  2. Step 2: Convert to fraction form
    693,660/957,250.80 = 375,708/x
  3. Step 3: Cross multiply
    693,660x = 957,250.80 × 375,708
  4. Step 4: Simplify right side
    693,660x = 359,646,783,566.40
  5. Step 5: Solve for x
    x = 359,646,783,566.40/693,660
  6. Step 6: Final answer
    x = 518,477.04

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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.