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Finding the Fourth Proportional to 1,275,039, 1,759,553.88 and 702,077.76

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Solution

The fourth proportional to 1,275,039, 1,759,553.88 and 702,077.76 is: 968,867.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,039 : 1,759,553.88 = 702,077.76 : x
  2. Step 2: Convert to fraction form
    1,275,039/1,759,553.88 = 702,077.76/x
  3. Step 3: Cross multiply
    1,275,039x = 1,759,553.88 × 702,077.76
  4. Step 4: Simplify right side
    1,275,039x = 1,235,343,646,669.71
  5. Step 5: Solve for x
    x = 1,235,343,646,669.71/1,275,039
  6. Step 6: Final answer
    x = 968,867.34

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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.