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Finding the Fourth Proportional to 575,865.60, 862,696.80 and 309,537.60

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Solution

The fourth proportional to 575,865.60, 862,696.80 and 309,537.60 is: 463,714.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,865.60 : 862,696.80 = 309,537.60 : x
  2. Step 2: Convert to fraction form
    575,865.60/862,696.80 = 309,537.60/x
  3. Step 3: Cross multiply
    575,865.60x = 862,696.80 × 309,537.60
  4. Step 4: Simplify right side
    575,865.60x = 267,037,096,999.68
  5. Step 5: Solve for x
    x = 267,037,096,999.68/575,865.60
  6. Step 6: Final answer
    x = 463,714.27

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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.