Home / 1,118,156.20-1,543,013.40-683,300.68

Finding the Fourth Proportional to 1,118,156.20, 1,543,013.40 and 683,300.68

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Solution

The fourth proportional to 1,118,156.20, 1,543,013.40 and 683,300.68 is: 942,929.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,156.20 : 1,543,013.40 = 683,300.68 : x
  2. Step 2: Convert to fraction form
    1,118,156.20/1,543,013.40 = 683,300.68/x
  3. Step 3: Cross multiply
    1,118,156.20x = 1,543,013.40 × 683,300.68
  4. Step 4: Simplify right side
    1,118,156.20x = 1,054,342,105,469.11
  5. Step 5: Solve for x
    x = 1,054,342,105,469.11/1,118,156.20
  6. Step 6: Final answer
    x = 942,929.18

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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.