Home / 1,281,043.40-1,767,659.28-729,773.60

Finding the Fourth Proportional to 1,281,043.40, 1,767,659.28 and 729,773.60

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Solution

The fourth proportional to 1,281,043.40, 1,767,659.28 and 729,773.60 is: 1,006,984.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,043.40 : 1,767,659.28 = 729,773.60 : x
  2. Step 2: Convert to fraction form
    1,281,043.40/1,767,659.28 = 729,773.60/x
  3. Step 3: Cross multiply
    1,281,043.40x = 1,767,659.28 × 729,773.60
  4. Step 4: Simplify right side
    1,281,043.40x = 1,289,991,076,339.01
  5. Step 5: Solve for x
    x = 1,289,991,076,339.01/1,281,043.40
  6. Step 6: Final answer
    x = 1,006,984.68

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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.