Home / 1,239,626.18-1,710,600.72-688,313.55

Finding the Fourth Proportional to 1,239,626.18, 1,710,600.72 and 688,313.55

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Solution

The fourth proportional to 1,239,626.18, 1,710,600.72 and 688,313.55 is: 949,826.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,626.18 : 1,710,600.72 = 688,313.55 : x
  2. Step 2: Convert to fraction form
    1,239,626.18/1,710,600.72 = 688,313.55/x
  3. Step 3: Cross multiply
    1,239,626.18x = 1,710,600.72 × 688,313.55
  4. Step 4: Simplify right side
    1,239,626.18x = 1,177,429,647,801.00
  5. Step 5: Solve for x
    x = 1,177,429,647,801.00/1,239,626.18
  6. Step 6: Final answer
    x = 949,826.38

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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.