Home / 747,379.63-1,121,058.91-347,796.91

Finding the Fourth Proportional to 747,379.63, 1,121,058.91 and 347,796.91

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Solution

The fourth proportional to 747,379.63, 1,121,058.91 and 347,796.91 is: 521,690.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,379.63 : 1,121,058.91 = 347,796.91 : x
  2. Step 2: Convert to fraction form
    747,379.63/1,121,058.91 = 347,796.91/x
  3. Step 3: Cross multiply
    747,379.63x = 1,121,058.91 × 347,796.91
  4. Step 4: Simplify right side
    747,379.63x = 389,900,817,481.69
  5. Step 5: Solve for x
    x = 389,900,817,481.69/747,379.63
  6. Step 6: Final answer
    x = 521,690.46

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.