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Finding the Fourth Proportional to 488,719.40, 735,047.40 and 437,543.60

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Solution

The fourth proportional to 488,719.40, 735,047.40 and 437,543.60 is: 658,077.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,719.40 : 735,047.40 = 437,543.60 : x
  2. Step 2: Convert to fraction form
    488,719.40/735,047.40 = 437,543.60/x
  3. Step 3: Cross multiply
    488,719.40x = 735,047.40 × 437,543.60
  4. Step 4: Simplify right side
    488,719.40x = 321,615,285,566.64
  5. Step 5: Solve for x
    x = 321,615,285,566.64/488,719.40
  6. Step 6: Final answer
    x = 658,077.59

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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.