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Finding the Fourth Proportional to 551,124.88, 760,499.80 and 309,352.04

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Solution

The fourth proportional to 551,124.88, 760,499.80 and 309,352.04 is: 426,876.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,124.88 : 760,499.80 = 309,352.04 : x
  2. Step 2: Convert to fraction form
    551,124.88/760,499.80 = 309,352.04/x
  3. Step 3: Cross multiply
    551,124.88x = 760,499.80 × 309,352.04
  4. Step 4: Simplify right side
    551,124.88x = 235,262,164,549.59
  5. Step 5: Solve for x
    x = 235,262,164,549.59/551,124.88
  6. Step 6: Final answer
    x = 426,876.33

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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.