Home / 987,172.96-1,362,301.20-534,464.80

Finding the Fourth Proportional to 987,172.96, 1,362,301.20 and 534,464.80

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Solution

The fourth proportional to 987,172.96, 1,362,301.20 and 534,464.80 is: 737,562.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,172.96 : 1,362,301.20 = 534,464.80 : x
  2. Step 2: Convert to fraction form
    987,172.96/1,362,301.20 = 534,464.80/x
  3. Step 3: Cross multiply
    987,172.96x = 1,362,301.20 × 534,464.80
  4. Step 4: Simplify right side
    987,172.96x = 728,102,038,397.76
  5. Step 5: Solve for x
    x = 728,102,038,397.76/987,172.96
  6. Step 6: Final answer
    x = 737,562.79

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1.5x scale

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.