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Finding the Fourth Proportional to 890,614.56, 1,332,768 and 553,813.60

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Solution

The fourth proportional to 890,614.56, 1,332,768 and 553,813.60 is: 828,759.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,614.56 : 1,332,768 = 553,813.60 : x
  2. Step 2: Convert to fraction form
    890,614.56/1,332,768 = 553,813.60/x
  3. Step 3: Cross multiply
    890,614.56x = 1,332,768 × 553,813.60
  4. Step 4: Simplify right side
    890,614.56x = 738,105,044,044.80
  5. Step 5: Solve for x
    x = 738,105,044,044.80/890,614.56
  6. Step 6: Final answer
    x = 828,759.24

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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.