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Finding the Fourth Proportional to 405,029.60, 607,544.40 and 381,701.60

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Solution

The fourth proportional to 405,029.60, 607,544.40 and 381,701.60 is: 572,552.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,029.60 : 607,544.40 = 381,701.60 : x
  2. Step 2: Convert to fraction form
    405,029.60/607,544.40 = 381,701.60/x
  3. Step 3: Cross multiply
    405,029.60x = 607,544.40 × 381,701.60
  4. Step 4: Simplify right side
    405,029.60x = 231,900,669,551.04
  5. Step 5: Solve for x
    x = 231,900,669,551.04/405,029.60
  6. Step 6: Final answer
    x = 572,552.40

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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.