Home / 750,814.32-1,036,140.50-428,517.96

Finding the Fourth Proportional to 750,814.32, 1,036,140.50 and 428,517.96

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Solution

The fourth proportional to 750,814.32, 1,036,140.50 and 428,517.96 is: 591,364.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,814.32 : 1,036,140.50 = 428,517.96 : x
  2. Step 2: Convert to fraction form
    750,814.32/1,036,140.50 = 428,517.96/x
  3. Step 3: Cross multiply
    750,814.32x = 1,036,140.50 × 428,517.96
  4. Step 4: Simplify right side
    750,814.32x = 444,004,813,333.38
  5. Step 5: Solve for x
    x = 444,004,813,333.38/750,814.32
  6. Step 6: Final answer
    x = 591,364.34

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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.