Home / 697,039.20-1,044,176.40-415,720.80

Finding the Fourth Proportional to 697,039.20, 1,044,176.40 and 415,720.80

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Solution

The fourth proportional to 697,039.20, 1,044,176.40 and 415,720.80 is: 622,756.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,039.20 : 1,044,176.40 = 415,720.80 : x
  2. Step 2: Convert to fraction form
    697,039.20/1,044,176.40 = 415,720.80/x
  3. Step 3: Cross multiply
    697,039.20x = 1,044,176.40 × 415,720.80
  4. Step 4: Simplify right side
    697,039.20x = 434,085,848,349.12
  5. Step 5: Solve for x
    x = 434,085,848,349.12/697,039.20
  6. Step 6: Final answer
    x = 622,756.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.