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Finding the Fourth Proportional to 543,005.87, 749,336.65 and 301,283.24

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Solution

The fourth proportional to 543,005.87, 749,336.65 and 301,283.24 is: 415,764.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,005.87 : 749,336.65 = 301,283.24 : x
  2. Step 2: Convert to fraction form
    543,005.87/749,336.65 = 301,283.24/x
  3. Step 3: Cross multiply
    543,005.87x = 749,336.65 × 301,283.24
  4. Step 4: Simplify right side
    543,005.87x = 225,762,573,762.75
  5. Step 5: Solve for x
    x = 225,762,573,762.75/543,005.87
  6. Step 6: Final answer
    x = 415,764.52

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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.