Home / 1,383,770.40-2,076,530.40-815,150.40

Finding the Fourth Proportional to 1,383,770.40, 2,076,530.40 and 815,150.40

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Solution

The fourth proportional to 1,383,770.40, 2,076,530.40 and 815,150.40 is: 1,223,240.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,770.40 : 2,076,530.40 = 815,150.40 : x
  2. Step 2: Convert to fraction form
    1,383,770.40/2,076,530.40 = 815,150.40/x
  3. Step 3: Cross multiply
    1,383,770.40x = 2,076,530.40 × 815,150.40
  4. Step 4: Simplify right side
    1,383,770.40x = 1,692,684,586,172.16
  5. Step 5: Solve for x
    x = 1,692,684,586,172.16/1,383,770.40
  6. Step 6: Final answer
    x = 1,223,240.93

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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.