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Finding the Fourth Proportional to 674,766.88, 931,199.80 and 368,836.54

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Solution

The fourth proportional to 674,766.88, 931,199.80 and 368,836.54 is: 509,006.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,766.88 : 931,199.80 = 368,836.54 : x
  2. Step 2: Convert to fraction form
    674,766.88/931,199.80 = 368,836.54/x
  3. Step 3: Cross multiply
    674,766.88x = 931,199.80 × 368,836.54
  4. Step 4: Simplify right side
    674,766.88x = 343,460,512,280.69
  5. Step 5: Solve for x
    x = 343,460,512,280.69/674,766.88
  6. Step 6: Final answer
    x = 509,006.18

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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.