Home / 491,135.04-733,116.96-421,462.08

Finding the Fourth Proportional to 491,135.04, 733,116.96 and 421,462.08

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Solution

The fourth proportional to 491,135.04, 733,116.96 and 421,462.08 is: 629,116.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,135.04 : 733,116.96 = 421,462.08 : x
  2. Step 2: Convert to fraction form
    491,135.04/733,116.96 = 421,462.08/x
  3. Step 3: Cross multiply
    491,135.04x = 733,116.96 × 421,462.08
  4. Step 4: Simplify right side
    491,135.04x = 308,980,998,844.88
  5. Step 5: Solve for x
    x = 308,980,998,844.88/491,135.04
  6. Step 6: Final answer
    x = 629,116.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.