Home / 688,301.23-1,033,108.56-422,580.73

Finding the Fourth Proportional to 688,301.23, 1,033,108.56 and 422,580.73

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Solution

The fourth proportional to 688,301.23, 1,033,108.56 and 422,580.73 is: 634,274.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,301.23 : 1,033,108.56 = 422,580.73 : x
  2. Step 2: Convert to fraction form
    688,301.23/1,033,108.56 = 422,580.73/x
  3. Step 3: Cross multiply
    688,301.23x = 1,033,108.56 × 422,580.73
  4. Step 4: Simplify right side
    688,301.23x = 436,571,769,454.05
  5. Step 5: Solve for x
    x = 436,571,769,454.05/688,301.23
  6. Step 6: Final answer
    x = 634,274.28

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1.5x scale

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.