Home / 1,115,043.45-1,672,628.73-316,262.21

Finding the Fourth Proportional to 1,115,043.45, 1,672,628.73 and 316,262.21

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Solution

The fourth proportional to 1,115,043.45, 1,672,628.73 and 316,262.21 is: 474,411.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,043.45 : 1,672,628.73 = 316,262.21 : x
  2. Step 2: Convert to fraction form
    1,115,043.45/1,672,628.73 = 316,262.21/x
  3. Step 3: Cross multiply
    1,115,043.45x = 1,672,628.73 × 316,262.21
  4. Step 4: Simplify right side
    1,115,043.45x = 528,989,250,296.15
  5. Step 5: Solve for x
    x = 528,989,250,296.15/1,115,043.45
  6. Step 6: Final answer
    x = 474,411.33

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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.