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Finding the Fourth Proportional to 664,333.02, 916,808.60 and 373,963.32

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Solution

The fourth proportional to 664,333.02, 916,808.60 and 373,963.32 is: 516,085.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,333.02 : 916,808.60 = 373,963.32 : x
  2. Step 2: Convert to fraction form
    664,333.02/916,808.60 = 373,963.32/x
  3. Step 3: Cross multiply
    664,333.02x = 916,808.60 × 373,963.32
  4. Step 4: Simplify right side
    664,333.02x = 342,852,793,189.13
  5. Step 5: Solve for x
    x = 342,852,793,189.13/664,333.02
  6. Step 6: Final answer
    x = 516,085.73

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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.