Home / 1,038,747.40-1,557,902.40-439,728.10

Finding the Fourth Proportional to 1,038,747.40, 1,557,902.40 and 439,728.10

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Solution

The fourth proportional to 1,038,747.40, 1,557,902.40 and 439,728.10 is: 659,499.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,747.40 : 1,557,902.40 = 439,728.10 : x
  2. Step 2: Convert to fraction form
    1,038,747.40/1,557,902.40 = 439,728.10/x
  3. Step 3: Cross multiply
    1,038,747.40x = 1,557,902.40 × 439,728.10
  4. Step 4: Simplify right side
    1,038,747.40x = 685,053,462,337.44
  5. Step 5: Solve for x
    x = 685,053,462,337.44/1,038,747.40
  6. Step 6: Final answer
    x = 659,499.57

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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.