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Finding the Fourth Proportional to 611,950.20, 917,147.70 and 295,726.20

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Solution

The fourth proportional to 611,950.20, 917,147.70 and 295,726.20 is: 443,213.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,950.20 : 917,147.70 = 295,726.20 : x
  2. Step 2: Convert to fraction form
    611,950.20/917,147.70 = 295,726.20/x
  3. Step 3: Cross multiply
    611,950.20x = 917,147.70 × 295,726.20
  4. Step 4: Simplify right side
    611,950.20x = 271,224,604,159.74
  5. Step 5: Solve for x
    x = 271,224,604,159.74/611,950.20
  6. Step 6: Final answer
    x = 443,213.52

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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.