Home / 1,385,622.80-2,078,002.20-544,432.40

Finding the Fourth Proportional to 1,385,622.80, 2,078,002.20 and 544,432.40

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Solution

The fourth proportional to 1,385,622.80, 2,078,002.20 and 544,432.40 is: 816,478.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,622.80 : 2,078,002.20 = 544,432.40 : x
  2. Step 2: Convert to fraction form
    1,385,622.80/2,078,002.20 = 544,432.40/x
  3. Step 3: Cross multiply
    1,385,622.80x = 2,078,002.20 × 544,432.40
  4. Step 4: Simplify right side
    1,385,622.80x = 1,131,331,724,951.28
  5. Step 5: Solve for x
    x = 1,131,331,724,951.28/1,385,622.80
  6. Step 6: Final answer
    x = 816,478.86

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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.