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Finding the Fourth Proportional to 671,751.90, 927,102.38 and 385,265.84

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Solution

The fourth proportional to 671,751.90, 927,102.38 and 385,265.84 is: 531,715.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,751.90 : 927,102.38 = 385,265.84 : x
  2. Step 2: Convert to fraction form
    671,751.90/927,102.38 = 385,265.84/x
  3. Step 3: Cross multiply
    671,751.90x = 927,102.38 × 385,265.84
  4. Step 4: Simplify right side
    671,751.90x = 357,180,870,634.86
  5. Step 5: Solve for x
    x = 357,180,870,634.86/671,751.90
  6. Step 6: Final answer
    x = 531,715.46

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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.