Home / 1,038,628.90-1,557,797.55-328,728.70

Finding the Fourth Proportional to 1,038,628.90, 1,557,797.55 and 328,728.70

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Solution

The fourth proportional to 1,038,628.90, 1,557,797.55 and 328,728.70 is: 493,046.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,628.90 : 1,557,797.55 = 328,728.70 : x
  2. Step 2: Convert to fraction form
    1,038,628.90/1,557,797.55 = 328,728.70/x
  3. Step 3: Cross multiply
    1,038,628.90x = 1,557,797.55 × 328,728.70
  4. Step 4: Simplify right side
    1,038,628.90x = 512,092,763,474.69
  5. Step 5: Solve for x
    x = 512,092,763,474.69/1,038,628.90
  6. Step 6: Final answer
    x = 493,046.90

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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.