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Finding the Fourth Proportional to 561,698.80, 842,548.20 and 245,820.40

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Solution

The fourth proportional to 561,698.80, 842,548.20 and 245,820.40 is: 368,730.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,698.80 : 842,548.20 = 245,820.40 : x
  2. Step 2: Convert to fraction form
    561,698.80/842,548.20 = 245,820.40/x
  3. Step 3: Cross multiply
    561,698.80x = 842,548.20 × 245,820.40
  4. Step 4: Simplify right side
    561,698.80x = 207,115,535,543.28
  5. Step 5: Solve for x
    x = 207,115,535,543.28/561,698.80
  6. Step 6: Final answer
    x = 368,730.60

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Similar ratio
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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.