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Finding the Fourth Proportional to 536,117.64, 739,859.72 and 309,763.12

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Solution

The fourth proportional to 536,117.64, 739,859.72 and 309,763.12 is: 427,483.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,117.64 : 739,859.72 = 309,763.12 : x
  2. Step 2: Convert to fraction form
    536,117.64/739,859.72 = 309,763.12/x
  3. Step 3: Cross multiply
    536,117.64x = 739,859.72 × 309,763.12
  4. Step 4: Simplify right side
    536,117.64x = 229,181,255,229.53
  5. Step 5: Solve for x
    x = 229,181,255,229.53/536,117.64
  6. Step 6: Final answer
    x = 427,483.15

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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.