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Finding the Fourth Proportional to 400,314.81, 601,912.57 and 369,106.67

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Solution

The fourth proportional to 400,314.81, 601,912.57 and 369,106.67 is: 554,988.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,314.81 : 601,912.57 = 369,106.67 : x
  2. Step 2: Convert to fraction form
    400,314.81/601,912.57 = 369,106.67/x
  3. Step 3: Cross multiply
    400,314.81x = 601,912.57 × 369,106.67
  4. Step 4: Simplify right side
    400,314.81x = 222,169,944,343.84
  5. Step 5: Solve for x
    x = 222,169,944,343.84/400,314.81
  6. Step 6: Final answer
    x = 554,988.07

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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.