Home / 1,300,630.60-1,951,091.70-402,065.20

Finding the Fourth Proportional to 1,300,630.60, 1,951,091.70 and 402,065.20

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Solution

The fourth proportional to 1,300,630.60, 1,951,091.70 and 402,065.20 is: 603,142.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,300,630.60 : 1,951,091.70 = 402,065.20 : x
  2. Step 2: Convert to fraction form
    1,300,630.60/1,951,091.70 = 402,065.20/x
  3. Step 3: Cross multiply
    1,300,630.60x = 1,951,091.70 × 402,065.20
  4. Step 4: Simplify right side
    1,300,630.60x = 784,466,074,578.84
  5. Step 5: Solve for x
    x = 784,466,074,578.84/1,300,630.60
  6. Step 6: Final answer
    x = 603,142.87

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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.