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Finding the Fourth Proportional to 464,425.60, 640,966.64 and 273,456.76

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Solution

The fourth proportional to 464,425.60, 640,966.64 and 273,456.76 is: 377,405.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,425.60 : 640,966.64 = 273,456.76 : x
  2. Step 2: Convert to fraction form
    464,425.60/640,966.64 = 273,456.76/x
  3. Step 3: Cross multiply
    464,425.60x = 640,966.64 × 273,456.76
  4. Step 4: Simplify right side
    464,425.60x = 175,276,660,642.49
  5. Step 5: Solve for x
    x = 175,276,660,642.49/464,425.60
  6. Step 6: Final answer
    x = 377,405.25

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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.