Home / 1,038,445.80-1,557,778.08-431,165.16

Finding the Fourth Proportional to 1,038,445.80, 1,557,778.08 and 431,165.16

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Solution

The fourth proportional to 1,038,445.80, 1,557,778.08 and 431,165.16 is: 646,793.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,445.80 : 1,557,778.08 = 431,165.16 : x
  2. Step 2: Convert to fraction form
    1,038,445.80/1,557,778.08 = 431,165.16/x
  3. Step 3: Cross multiply
    1,038,445.80x = 1,557,778.08 × 431,165.16
  4. Step 4: Simplify right side
    1,038,445.80x = 671,659,635,107.69
  5. Step 5: Solve for x
    x = 671,659,635,107.69/1,038,445.80
  6. Step 6: Final answer
    x = 646,793.15

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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.