Home / 1,261,190.70-1,740,480.18-688,267.83

Finding the Fourth Proportional to 1,261,190.70, 1,740,480.18 and 688,267.83

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Solution

The fourth proportional to 1,261,190.70, 1,740,480.18 and 688,267.83 is: 949,829.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,190.70 : 1,740,480.18 = 688,267.83 : x
  2. Step 2: Convert to fraction form
    1,261,190.70/1,740,480.18 = 688,267.83/x
  3. Step 3: Cross multiply
    1,261,190.70x = 1,740,480.18 × 688,267.83
  4. Step 4: Simplify right side
    1,261,190.70x = 1,197,916,516,646.61
  5. Step 5: Solve for x
    x = 1,197,916,516,646.61/1,261,190.70
  6. Step 6: Final answer
    x = 949,829.80

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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.