Home / 1,989,715.84-2,745,920.04-1,505,440.20

Finding the Fourth Proportional to 1,989,715.84, 2,745,920.04 and 1,505,440.20

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Solution

The fourth proportional to 1,989,715.84, 2,745,920.04 and 1,505,440.20 is: 2,077,592.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,715.84 : 2,745,920.04 = 1,505,440.20 : x
  2. Step 2: Convert to fraction form
    1,989,715.84/2,745,920.04 = 1,505,440.20/x
  3. Step 3: Cross multiply
    1,989,715.84x = 2,745,920.04 × 1,505,440.20
  4. Step 4: Simplify right side
    1,989,715.84x = 4,133,818,414,201.61
  5. Step 5: Solve for x
    x = 4,133,818,414,201.61/1,989,715.84
  6. Step 6: Final answer
    x = 2,077,592.35

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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.