Home / 4,260,612.80-6,390,951.60-1,420,720.40

Finding the Fourth Proportional to 4,260,612.80, 6,390,951.60 and 1,420,720.40

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Solution

The fourth proportional to 4,260,612.80, 6,390,951.60 and 1,420,720.40 is: 2,131,091.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,260,612.80 : 6,390,951.60 = 1,420,720.40 : x
  2. Step 2: Convert to fraction form
    4,260,612.80/6,390,951.60 = 1,420,720.40/x
  3. Step 3: Cross multiply
    4,260,612.80x = 6,390,951.60 × 1,420,720.40
  4. Step 4: Simplify right side
    4,260,612.80x = 9,079,755,313,532.64
  5. Step 5: Solve for x
    x = 9,079,755,313,532.64/4,260,612.80
  6. Step 6: Final answer
    x = 2,131,091.40

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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.