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Finding the Fourth Proportional to 480,498.14, 662,928.95 and 308,512.46

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Solution

The fourth proportional to 480,498.14, 662,928.95 and 308,512.46 is: 425,645.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,498.14 : 662,928.95 = 308,512.46 : x
  2. Step 2: Convert to fraction form
    480,498.14/662,928.95 = 308,512.46/x
  3. Step 3: Cross multiply
    480,498.14x = 662,928.95 × 308,512.46
  4. Step 4: Simplify right side
    480,498.14x = 204,521,836,312.51
  5. Step 5: Solve for x
    x = 204,521,836,312.51/480,498.14
  6. Step 6: Final answer
    x = 425,645.43

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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.