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Finding the Fourth Proportional to 400,314.91, 601,912.71 and 369,106.76

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Solution

The fourth proportional to 400,314.91, 601,912.71 and 369,106.76 is: 554,988.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,314.91 : 601,912.71 = 369,106.76 : x
  2. Step 2: Convert to fraction form
    400,314.91/601,912.71 = 369,106.76/x
  3. Step 3: Cross multiply
    400,314.91x = 601,912.71 × 369,106.76
  4. Step 4: Simplify right side
    400,314.91x = 222,170,050,190.92
  5. Step 5: Solve for x
    x = 222,170,050,190.92/400,314.91
  6. Step 6: Final answer
    x = 554,988.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.