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Finding the Fourth Proportional to 607,252.97, 909,720.34 and 340,205.69

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Solution

The fourth proportional to 607,252.97, 909,720.34 and 340,205.69 is: 509,659.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,252.97 : 909,720.34 = 340,205.69 : x
  2. Step 2: Convert to fraction form
    607,252.97/909,720.34 = 340,205.69/x
  3. Step 3: Cross multiply
    607,252.97x = 909,720.34 × 340,205.69
  4. Step 4: Simplify right side
    607,252.97x = 309,492,035,976.74
  5. Step 5: Solve for x
    x = 309,492,035,976.74/607,252.97
  6. Step 6: Final answer
    x = 509,659.16

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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.