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Finding the Fourth Proportional to 425,514.20, 637,615.20 and 369,089.60

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Solution

The fourth proportional to 425,514.20, 637,615.20 and 369,089.60 is: 553,065.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,514.20 : 637,615.20 = 369,089.60 : x
  2. Step 2: Convert to fraction form
    425,514.20/637,615.20 = 369,089.60/x
  3. Step 3: Cross multiply
    425,514.20x = 637,615.20 × 369,089.60
  4. Step 4: Simplify right side
    425,514.20x = 235,337,139,121.92
  5. Step 5: Solve for x
    x = 235,337,139,121.92/425,514.20
  6. Step 6: Final answer
    x = 553,065.30

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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.