Home / 1,111,467.64-1,667,337.80-312,749.96

Finding the Fourth Proportional to 1,111,467.64, 1,667,337.80 and 312,749.96

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Solution

The fourth proportional to 1,111,467.64, 1,667,337.80 and 312,749.96 is: 469,163.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,467.64 : 1,667,337.80 = 312,749.96 : x
  2. Step 2: Convert to fraction form
    1,111,467.64/1,667,337.80 = 312,749.96/x
  3. Step 3: Cross multiply
    1,111,467.64x = 1,667,337.80 × 312,749.96
  4. Step 4: Simplify right side
    1,111,467.64x = 521,459,822,701.67
  5. Step 5: Solve for x
    x = 521,459,822,701.67/1,111,467.64
  6. Step 6: Final answer
    x = 469,163.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.