Home / 1,280,944.31-1,767,699.89-729,659.93

Finding the Fourth Proportional to 1,280,944.31, 1,767,699.89 and 729,659.93

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Solution

The fourth proportional to 1,280,944.31, 1,767,699.89 and 729,659.93 is: 1,006,928.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,944.31 : 1,767,699.89 = 729,659.93 : x
  2. Step 2: Convert to fraction form
    1,280,944.31/1,767,699.89 = 729,659.93/x
  3. Step 3: Cross multiply
    1,280,944.31x = 1,767,699.89 × 729,659.93
  4. Step 4: Simplify right side
    1,280,944.31x = 1,289,819,774,350.11
  5. Step 5: Solve for x
    x = 1,289,819,774,350.11/1,280,944.31
  6. Step 6: Final answer
    x = 1,006,928.84

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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.