Home / 651,115.20-975,360.60-438,538.80

Finding the Fourth Proportional to 651,115.20, 975,360.60 and 438,538.80

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Solution

The fourth proportional to 651,115.20, 975,360.60 and 438,538.80 is: 656,924.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,115.20 : 975,360.60 = 438,538.80 : x
  2. Step 2: Convert to fraction form
    651,115.20/975,360.60 = 438,538.80/x
  3. Step 3: Cross multiply
    651,115.20x = 975,360.60 × 438,538.80
  4. Step 4: Simplify right side
    651,115.20x = 427,733,467,091.28
  5. Step 5: Solve for x
    x = 427,733,467,091.28/651,115.20
  6. Step 6: Final answer
    x = 656,924.41

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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.