Home / 1,206,665.84-1,665,153.24-670,156.40

Finding the Fourth Proportional to 1,206,665.84, 1,665,153.24 and 670,156.40

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Solution

The fourth proportional to 1,206,665.84, 1,665,153.24 and 670,156.40 is: 924,790.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,665.84 : 1,665,153.24 = 670,156.40 : x
  2. Step 2: Convert to fraction form
    1,206,665.84/1,665,153.24 = 670,156.40/x
  3. Step 3: Cross multiply
    1,206,665.84x = 1,665,153.24 × 670,156.40
  4. Step 4: Simplify right side
    1,206,665.84x = 1,115,913,100,766.74
  5. Step 5: Solve for x
    x = 1,115,913,100,766.74/1,206,665.84
  6. Step 6: Final answer
    x = 924,790.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.