Home / 1,270,236.51-1,752,928.15-689,459.77

Finding the Fourth Proportional to 1,270,236.51, 1,752,928.15 and 689,459.77

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Solution

The fourth proportional to 1,270,236.51, 1,752,928.15 and 689,459.77 is: 951,455.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,236.51 : 1,752,928.15 = 689,459.77 : x
  2. Step 2: Convert to fraction form
    1,270,236.51/1,752,928.15 = 689,459.77/x
  3. Step 3: Cross multiply
    1,270,236.51x = 1,752,928.15 × 689,459.77
  4. Step 4: Simplify right side
    1,270,236.51x = 1,208,573,437,328.68
  5. Step 5: Solve for x
    x = 1,208,573,437,328.68/1,270,236.51
  6. Step 6: Final answer
    x = 951,455.44

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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.