Home / 1,140,783.42-1,712,857.28-636,330

Finding the Fourth Proportional to 1,140,783.42, 1,712,857.28 and 636,330

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Solution

The fourth proportional to 1,140,783.42, 1,712,857.28 and 636,330 is: 955,433.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140,783.42 : 1,712,857.28 = 636,330 : x
  2. Step 2: Convert to fraction form
    1,140,783.42/1,712,857.28 = 636,330/x
  3. Step 3: Cross multiply
    1,140,783.42x = 1,712,857.28 × 636,330
  4. Step 4: Simplify right side
    1,140,783.42x = 1,089,942,469,800.75
  5. Step 5: Solve for x
    x = 1,089,942,469,800.75/1,140,783.42
  6. Step 6: Final answer
    x = 955,433.30

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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.