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Finding the Fourth Proportional to 671,267.86, 926,115.93 and 380,845.19

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Solution

The fourth proportional to 671,267.86, 926,115.93 and 380,845.19 is: 525,433.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,267.86 : 926,115.93 = 380,845.19 : x
  2. Step 2: Convert to fraction form
    671,267.86/926,115.93 = 380,845.19/x
  3. Step 3: Cross multiply
    671,267.86x = 926,115.93 × 380,845.19
  4. Step 4: Simplify right side
    671,267.86x = 352,706,799,638.17
  5. Step 5: Solve for x
    x = 352,706,799,638.17/671,267.86
  6. Step 6: Final answer
    x = 525,433.77

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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.