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Finding the Fourth Proportional to 607,029.20, 909,814.80 and 251,860.40

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Solution

The fourth proportional to 607,029.20, 909,814.80 and 251,860.40 is: 377,488.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,029.20 : 909,814.80 = 251,860.40 : x
  2. Step 2: Convert to fraction form
    607,029.20/909,814.80 = 251,860.40/x
  3. Step 3: Cross multiply
    607,029.20x = 909,814.80 × 251,860.40
  4. Step 4: Simplify right side
    607,029.20x = 229,146,319,453.92
  5. Step 5: Solve for x
    x = 229,146,319,453.92/607,029.20
  6. Step 6: Final answer
    x = 377,488.13

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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.