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Finding the Fourth Proportional to 535,666.52, 739,329.18 and 309,281.24

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Solution

The fourth proportional to 535,666.52, 739,329.18 and 309,281.24 is: 426,871.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,666.52 : 739,329.18 = 309,281.24 : x
  2. Step 2: Convert to fraction form
    535,666.52/739,329.18 = 309,281.24/x
  3. Step 3: Cross multiply
    535,666.52x = 739,329.18 × 309,281.24
  4. Step 4: Simplify right side
    535,666.52x = 228,660,645,558.58
  5. Step 5: Solve for x
    x = 228,660,645,558.58/535,666.52
  6. Step 6: Final answer
    x = 426,871.27

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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.