Home / 1,288,445.75-1,932,666.44-328,901.21

Finding the Fourth Proportional to 1,288,445.75, 1,932,666.44 and 328,901.21

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Solution

The fourth proportional to 1,288,445.75, 1,932,666.44 and 328,901.21 is: 493,351.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,445.75 : 1,932,666.44 = 328,901.21 : x
  2. Step 2: Convert to fraction form
    1,288,445.75/1,932,666.44 = 328,901.21/x
  3. Step 3: Cross multiply
    1,288,445.75x = 1,932,666.44 × 328,901.21
  4. Step 4: Simplify right side
    1,288,445.75x = 635,656,319,334.55
  5. Step 5: Solve for x
    x = 635,656,319,334.55/1,288,445.75
  6. Step 6: Final answer
    x = 493,351.25

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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.