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Finding the Fourth Proportional to 551,094.57, 760,468.50 and 309,330.43

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Solution

The fourth proportional to 551,094.57, 760,468.50 and 309,330.43 is: 426,852.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,094.57 : 760,468.50 = 309,330.43 : x
  2. Step 2: Convert to fraction form
    551,094.57/760,468.50 = 309,330.43/x
  3. Step 3: Cross multiply
    551,094.57x = 760,468.50 × 309,330.43
  4. Step 4: Simplify right side
    551,094.57x = 235,236,048,106.46
  5. Step 5: Solve for x
    x = 235,236,048,106.46/551,094.57
  6. Step 6: Final answer
    x = 426,852.42

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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.