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Finding the Fourth Proportional to 540,985.72, 746,553.90 and 299,249.32

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Solution

The fourth proportional to 540,985.72, 746,553.90 and 299,249.32 is: 412,960.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,985.72 : 746,553.90 = 299,249.32 : x
  2. Step 2: Convert to fraction form
    540,985.72/746,553.90 = 299,249.32/x
  3. Step 3: Cross multiply
    540,985.72x = 746,553.90 × 299,249.32
  4. Step 4: Simplify right side
    540,985.72x = 223,405,746,918.35
  5. Step 5: Solve for x
    x = 223,405,746,918.35/540,985.72
  6. Step 6: Final answer
    x = 412,960.52

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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.