Home / 1,380,602.49-1,905,213.25-760,395.74

Finding the Fourth Proportional to 1,380,602.49, 1,905,213.25 and 760,395.74

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Solution

The fourth proportional to 1,380,602.49, 1,905,213.25 and 760,395.74 is: 1,049,336.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,602.49 : 1,905,213.25 = 760,395.74 : x
  2. Step 2: Convert to fraction form
    1,380,602.49/1,905,213.25 = 760,395.74/x
  3. Step 3: Cross multiply
    1,380,602.49x = 1,905,213.25 × 760,395.74
  4. Step 4: Simplify right side
    1,380,602.49x = 1,448,716,039,091.56
  5. Step 5: Solve for x
    x = 1,448,716,039,091.56/1,380,602.49
  6. Step 6: Final answer
    x = 1,049,336.10

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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.