Home / 761,469.20-1,142,203.80-200,560.40

Finding the Fourth Proportional to 761,469.20, 1,142,203.80 and 200,560.40

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Solution

The fourth proportional to 761,469.20, 1,142,203.80 and 200,560.40 is: 300,840.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,469.20 : 1,142,203.80 = 200,560.40 : x
  2. Step 2: Convert to fraction form
    761,469.20/1,142,203.80 = 200,560.40/x
  3. Step 3: Cross multiply
    761,469.20x = 1,142,203.80 × 200,560.40
  4. Step 4: Simplify right side
    761,469.20x = 229,080,851,009.52
  5. Step 5: Solve for x
    x = 229,080,851,009.52/761,469.20
  6. Step 6: Final answer
    x = 300,840.60

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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.