Home / 1,385,143.20-2,076,548.40-720,295.20

Finding the Fourth Proportional to 1,385,143.20, 2,076,548.40 and 720,295.20

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Solution

The fourth proportional to 1,385,143.20, 2,076,548.40 and 720,295.20 is: 1,079,836.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,143.20 : 2,076,548.40 = 720,295.20 : x
  2. Step 2: Convert to fraction form
    1,385,143.20/2,076,548.40 = 720,295.20/x
  3. Step 3: Cross multiply
    1,385,143.20x = 2,076,548.40 × 720,295.20
  4. Step 4: Simplify right side
    1,385,143.20x = 1,495,727,845,087.68
  5. Step 5: Solve for x
    x = 1,495,727,845,087.68/1,385,143.20
  6. Step 6: Final answer
    x = 1,079,836.25

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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.