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Finding the Fourth Proportional to 607,440.05, 838,262.27 and 331,798.05

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Solution

The fourth proportional to 607,440.05, 838,262.27 and 331,798.05 is: 457,878.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,440.05 : 838,262.27 = 331,798.05 : x
  2. Step 2: Convert to fraction form
    607,440.05/838,262.27 = 331,798.05/x
  3. Step 3: Cross multiply
    607,440.05x = 838,262.27 × 331,798.05
  4. Step 4: Simplify right side
    607,440.05x = 278,133,784,915.58
  5. Step 5: Solve for x
    x = 278,133,784,915.58/607,440.05
  6. Step 6: Final answer
    x = 457,878.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.