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Finding the Fourth Proportional to 488,096.80, 730,719.60 and 348,128.80

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Solution

The fourth proportional to 488,096.80, 730,719.60 and 348,128.80 is: 521,176.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,096.80 : 730,719.60 = 348,128.80 : x
  2. Step 2: Convert to fraction form
    488,096.80/730,719.60 = 348,128.80/x
  3. Step 3: Cross multiply
    488,096.80x = 730,719.60 × 348,128.80
  4. Step 4: Simplify right side
    488,096.80x = 254,384,537,484.48
  5. Step 5: Solve for x
    x = 254,384,537,484.48/488,096.80
  6. Step 6: Final answer
    x = 521,176.41

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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.