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Finding the Fourth Proportional to 543,005.51, 749,336.13 and 301,282.88

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Solution

The fourth proportional to 543,005.51, 749,336.13 and 301,282.88 is: 415,764.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,005.51 : 749,336.13 = 301,282.88 : x
  2. Step 2: Convert to fraction form
    543,005.51/749,336.13 = 301,282.88/x
  3. Step 3: Cross multiply
    543,005.51x = 749,336.13 × 301,282.88
  4. Step 4: Simplify right side
    543,005.51x = 225,762,143,587.77
  5. Step 5: Solve for x
    x = 225,762,143,587.77/543,005.51
  6. Step 6: Final answer
    x = 415,764.01

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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.