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Finding the Fourth Proportional to 607,523.20, 909,972.60 and 326,712.40

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Solution

The fourth proportional to 607,523.20, 909,972.60 and 326,712.40 is: 489,362.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,523.20 : 909,972.60 = 326,712.40 : x
  2. Step 2: Convert to fraction form
    607,523.20/909,972.60 = 326,712.40/x
  3. Step 3: Cross multiply
    607,523.20x = 909,972.60 × 326,712.40
  4. Step 4: Simplify right side
    607,523.20x = 297,299,332,080.24
  5. Step 5: Solve for x
    x = 297,299,332,080.24/607,523.20
  6. Step 6: Final answer
    x = 489,362.93

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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.