Home / 1,512,491.81-2,087,211.78-824,168.49

Finding the Fourth Proportional to 1,512,491.81, 2,087,211.78 and 824,168.49

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Solution

The fourth proportional to 1,512,491.81, 2,087,211.78 and 824,168.49 is: 1,137,337.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512,491.81 : 2,087,211.78 = 824,168.49 : x
  2. Step 2: Convert to fraction form
    1,512,491.81/2,087,211.78 = 824,168.49/x
  3. Step 3: Cross multiply
    1,512,491.81x = 2,087,211.78 × 824,168.49
  4. Step 4: Simplify right side
    1,512,491.81x = 1,720,214,173,205.77
  5. Step 5: Solve for x
    x = 1,720,214,173,205.77/1,512,491.81
  6. Step 6: Final answer
    x = 1,137,337.85

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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.