Home / 1,261,263.45-1,740,543.10-688,303.62

Finding the Fourth Proportional to 1,261,263.45, 1,740,543.10 and 688,303.62

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Solution

The fourth proportional to 1,261,263.45, 1,740,543.10 and 688,303.62 is: 949,858.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,263.45 : 1,740,543.10 = 688,303.62 : x
  2. Step 2: Convert to fraction form
    1,261,263.45/1,740,543.10 = 688,303.62/x
  3. Step 3: Cross multiply
    1,261,263.45x = 1,740,543.10 × 688,303.62
  4. Step 4: Simplify right side
    1,261,263.45x = 1,198,022,109,395.97
  5. Step 5: Solve for x
    x = 1,198,022,109,395.97/1,261,263.45
  6. Step 6: Final answer
    x = 949,858.74

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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.