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Finding the Fourth Proportional to 543,300.64, 749,767.12 and 304,836.64

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Solution

The fourth proportional to 543,300.64, 749,767.12 and 304,836.64 is: 420,681.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,300.64 : 749,767.12 = 304,836.64 : x
  2. Step 2: Convert to fraction form
    543,300.64/749,767.12 = 304,836.64/x
  3. Step 3: Cross multiply
    543,300.64x = 749,767.12 × 304,836.64
  4. Step 4: Simplify right side
    543,300.64x = 228,556,489,643.28
  5. Step 5: Solve for x
    x = 228,556,489,643.28/543,300.64
  6. Step 6: Final answer
    x = 420,681.43

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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.