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Finding the Fourth Proportional to 707,033.32, 975,705.70 and 389,081.32

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Solution

The fourth proportional to 707,033.32, 975,705.70 and 389,081.32 is: 536,932.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,033.32 : 975,705.70 = 389,081.32 : x
  2. Step 2: Convert to fraction form
    707,033.32/975,705.70 = 389,081.32/x
  3. Step 3: Cross multiply
    707,033.32x = 975,705.70 × 389,081.32
  4. Step 4: Simplify right side
    707,033.32x = 379,628,861,687.52
  5. Step 5: Solve for x
    x = 379,628,861,687.52/707,033.32
  6. Step 6: Final answer
    x = 536,932.07

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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.