Home / 993,485.10-1,489,391.73-432,096.78

Finding the Fourth Proportional to 993,485.10, 1,489,391.73 and 432,096.78

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Solution

The fourth proportional to 993,485.10, 1,489,391.73 and 432,096.78 is: 647,781.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,485.10 : 1,489,391.73 = 432,096.78 : x
  2. Step 2: Convert to fraction form
    993,485.10/1,489,391.73 = 432,096.78/x
  3. Step 3: Cross multiply
    993,485.10x = 1,489,391.73 × 432,096.78
  4. Step 4: Simplify right side
    993,485.10x = 643,561,370,691.63
  5. Step 5: Solve for x
    x = 643,561,370,691.63/993,485.10
  6. Step 6: Final answer
    x = 647,781.60

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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.