Home / 778,002.28-1,074,001.86-455,667.88

Finding the Fourth Proportional to 778,002.28, 1,074,001.86 and 455,667.88

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Solution

The fourth proportional to 778,002.28, 1,074,001.86 and 455,667.88 is: 629,031.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,002.28 : 1,074,001.86 = 455,667.88 : x
  2. Step 2: Convert to fraction form
    778,002.28/1,074,001.86 = 455,667.88/x
  3. Step 3: Cross multiply
    778,002.28x = 1,074,001.86 × 455,667.88
  4. Step 4: Simplify right side
    778,002.28x = 489,388,150,662.26
  5. Step 5: Solve for x
    x = 489,388,150,662.26/778,002.28
  6. Step 6: Final answer
    x = 629,031.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.