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Finding the Fourth Proportional to 674,718.54, 931,170.87 and 372,970.86

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Solution

The fourth proportional to 674,718.54, 931,170.87 and 372,970.86 is: 514,732.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,718.54 : 931,170.87 = 372,970.86 : x
  2. Step 2: Convert to fraction form
    674,718.54/931,170.87 = 372,970.86/x
  3. Step 3: Cross multiply
    674,718.54x = 931,170.87 × 372,970.86
  4. Step 4: Simplify right side
    674,718.54x = 347,299,600,190.85
  5. Step 5: Solve for x
    x = 347,299,600,190.85/674,718.54
  6. Step 6: Final answer
    x = 514,732.56

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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.