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Finding the Fourth Proportional to 671,166.37, 926,212.67 and 384,703.21

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Solution

The fourth proportional to 671,166.37, 926,212.67 and 384,703.21 is: 530,892.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,166.37 : 926,212.67 = 384,703.21 : x
  2. Step 2: Convert to fraction form
    671,166.37/926,212.67 = 384,703.21/x
  3. Step 3: Cross multiply
    671,166.37x = 926,212.67 × 384,703.21
  4. Step 4: Simplify right side
    671,166.37x = 356,316,987,291.67
  5. Step 5: Solve for x
    x = 356,316,987,291.67/671,166.37
  6. Step 6: Final answer
    x = 530,892.19

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.