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Finding the Fourth Proportional to 662,456.40, 993,684.60 and 163,820.40

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Solution

The fourth proportional to 662,456.40, 993,684.60 and 163,820.40 is: 245,730.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,456.40 : 993,684.60 = 163,820.40 : x
  2. Step 2: Convert to fraction form
    662,456.40/993,684.60 = 163,820.40/x
  3. Step 3: Cross multiply
    662,456.40x = 993,684.60 × 163,820.40
  4. Step 4: Simplify right side
    662,456.40x = 162,785,808,645.84
  5. Step 5: Solve for x
    x = 162,785,808,645.84/662,456.40
  6. Step 6: Final answer
    x = 245,730.60

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Similar ratio
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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.