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Finding the Fourth Proportional to 570,762.60, 786,905.46 and 491,046.36

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Solution

The fourth proportional to 570,762.60, 786,905.46 and 491,046.36 is: 677,001.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,762.60 : 786,905.46 = 491,046.36 : x
  2. Step 2: Convert to fraction form
    570,762.60/786,905.46 = 491,046.36/x
  3. Step 3: Cross multiply
    570,762.60x = 786,905.46 × 491,046.36
  4. Step 4: Simplify right side
    570,762.60x = 386,407,061,797.13
  5. Step 5: Solve for x
    x = 386,407,061,797.13/570,762.60
  6. Step 6: Final answer
    x = 677,001.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.