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Finding the Fourth Proportional to 360,813.52, 497,593.70 and 309,810.28

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Solution

The fourth proportional to 360,813.52, 497,593.70 and 309,810.28 is: 427,255.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,813.52 : 497,593.70 = 309,810.28 : x
  2. Step 2: Convert to fraction form
    360,813.52/497,593.70 = 309,810.28/x
  3. Step 3: Cross multiply
    360,813.52x = 497,593.70 × 309,810.28
  4. Step 4: Simplify right side
    360,813.52x = 154,159,643,523.24
  5. Step 5: Solve for x
    x = 154,159,643,523.24/360,813.52
  6. Step 6: Final answer
    x = 427,255.73

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1.5x scale

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.