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Finding the Fourth Proportional to 675,761.89, 932,532.55 and 400,133.60

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Solution

The fourth proportional to 675,761.89, 932,532.55 and 400,133.60 is: 552,173.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,761.89 : 932,532.55 = 400,133.60 : x
  2. Step 2: Convert to fraction form
    675,761.89/932,532.55 = 400,133.60/x
  3. Step 3: Cross multiply
    675,761.89x = 932,532.55 × 400,133.60
  4. Step 4: Simplify right side
    675,761.89x = 373,137,601,559.93
  5. Step 5: Solve for x
    x = 373,137,601,559.93/675,761.89
  6. Step 6: Final answer
    x = 552,173.20

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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.