Home / 808,039.72-1,115,103.41-445,476.55

Finding the Fourth Proportional to 808,039.72, 1,115,103.41 and 445,476.55

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Solution

The fourth proportional to 808,039.72, 1,115,103.41 and 445,476.55 is: 614,762.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,039.72 : 1,115,103.41 = 445,476.55 : x
  2. Step 2: Convert to fraction form
    808,039.72/1,115,103.41 = 445,476.55/x
  3. Step 3: Cross multiply
    808,039.72x = 1,115,103.41 × 445,476.55
  4. Step 4: Simplify right side
    808,039.72x = 496,752,417,752.65
  5. Step 5: Solve for x
    x = 496,752,417,752.65/808,039.72
  6. Step 6: Final answer
    x = 614,762.38

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Double scale
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1.5x scale

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.