Home / 1,300,643.10-1,951,110.45-402,077.70

Finding the Fourth Proportional to 1,300,643.10, 1,951,110.45 and 402,077.70

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Solution

The fourth proportional to 1,300,643.10, 1,951,110.45 and 402,077.70 is: 603,161.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,300,643.10 : 1,951,110.45 = 402,077.70 : x
  2. Step 2: Convert to fraction form
    1,300,643.10/1,951,110.45 = 402,077.70/x
  3. Step 3: Cross multiply
    1,300,643.10x = 1,951,110.45 × 402,077.70
  4. Step 4: Simplify right side
    1,300,643.10x = 784,498,002,181.97
  5. Step 5: Solve for x
    x = 784,498,002,181.97/1,300,643.10
  6. Step 6: Final answer
    x = 603,161.62

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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.