Home / 1,008,905.76-1,392,299.46-556,212.96

Finding the Fourth Proportional to 1,008,905.76, 1,392,299.46 and 556,212.96

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Solution

The fourth proportional to 1,008,905.76, 1,392,299.46 and 556,212.96 is: 767,579.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,905.76 : 1,392,299.46 = 556,212.96 : x
  2. Step 2: Convert to fraction form
    1,008,905.76/1,392,299.46 = 556,212.96/x
  3. Step 3: Cross multiply
    1,008,905.76x = 1,392,299.46 × 556,212.96
  4. Step 4: Simplify right side
    1,008,905.76x = 774,415,003,853.00
  5. Step 5: Solve for x
    x = 774,415,003,853.00/1,008,905.76
  6. Step 6: Final answer
    x = 767,579.13

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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.