Home / 769,814.40-1,062,315.36-430,288.32

Finding the Fourth Proportional to 769,814.40, 1,062,315.36 and 430,288.32

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Solution

The fourth proportional to 769,814.40, 1,062,315.36 and 430,288.32 is: 593,781.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,814.40 : 1,062,315.36 = 430,288.32 : x
  2. Step 2: Convert to fraction form
    769,814.40/1,062,315.36 = 430,288.32/x
  3. Step 3: Cross multiply
    769,814.40x = 1,062,315.36 × 430,288.32
  4. Step 4: Simplify right side
    769,814.40x = 457,101,891,564.60
  5. Step 5: Solve for x
    x = 457,101,891,564.60/769,814.40
  6. Step 6: Final answer
    x = 593,781.94

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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.