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Finding the Fourth Proportional to 556,340.18, 767,749.86 and 301,691.30

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Solution

The fourth proportional to 556,340.18, 767,749.86 and 301,691.30 is: 416,334.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,340.18 : 767,749.86 = 301,691.30 : x
  2. Step 2: Convert to fraction form
    556,340.18/767,749.86 = 301,691.30/x
  3. Step 3: Cross multiply
    556,340.18x = 767,749.86 × 301,691.30
  4. Step 4: Simplify right side
    556,340.18x = 231,623,449,499.47
  5. Step 5: Solve for x
    x = 231,623,449,499.47/556,340.18
  6. Step 6: Final answer
    x = 416,334.21

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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.