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Finding the Fourth Proportional to 556,448.45, 767,900.22 and 301,799.66

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Solution

The fourth proportional to 556,448.45, 767,900.22 and 301,799.66 is: 416,484.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,448.45 : 767,900.22 = 301,799.66 : x
  2. Step 2: Convert to fraction form
    556,448.45/767,900.22 = 301,799.66/x
  3. Step 3: Cross multiply
    556,448.45x = 767,900.22 × 301,799.66
  4. Step 4: Simplify right side
    556,448.45x = 231,752,025,309.93
  5. Step 5: Solve for x
    x = 231,752,025,309.93/556,448.45
  6. Step 6: Final answer
    x = 416,484.27

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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.