Home / 664,830.05-997,403.02-215,551.26

Finding the Fourth Proportional to 664,830.05, 997,403.02 and 215,551.26

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Solution

The fourth proportional to 664,830.05, 997,403.02 and 215,551.26 is: 323,378.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,830.05 : 997,403.02 = 215,551.26 : x
  2. Step 2: Convert to fraction form
    664,830.05/997,403.02 = 215,551.26/x
  3. Step 3: Cross multiply
    664,830.05x = 997,403.02 × 215,551.26
  4. Step 4: Simplify right side
    664,830.05x = 214,991,477,149.93
  5. Step 5: Solve for x
    x = 214,991,477,149.93/664,830.05
  6. Step 6: Final answer
    x = 323,378.10

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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.