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Finding the Fourth Proportional to 665,256.90, 997,925.44 and 451,934.48

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Solution

The fourth proportional to 665,256.90, 997,925.44 and 451,934.48 is: 677,928.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,256.90 : 997,925.44 = 451,934.48 : x
  2. Step 2: Convert to fraction form
    665,256.90/997,925.44 = 451,934.48/x
  3. Step 3: Cross multiply
    665,256.90x = 997,925.44 × 451,934.48
  4. Step 4: Simplify right side
    665,256.90x = 450,996,914,805.17
  5. Step 5: Solve for x
    x = 450,996,914,805.17/665,256.90
  6. Step 6: Final answer
    x = 677,928.95

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1.5x scale

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.