Home / 1,138,427.70-1,707,390.09-328,636.11

Finding the Fourth Proportional to 1,138,427.70, 1,707,390.09 and 328,636.11

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Solution

The fourth proportional to 1,138,427.70, 1,707,390.09 and 328,636.11 is: 492,881.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,427.70 : 1,707,390.09 = 328,636.11 : x
  2. Step 2: Convert to fraction form
    1,138,427.70/1,707,390.09 = 328,636.11/x
  3. Step 3: Cross multiply
    1,138,427.70x = 1,707,390.09 × 328,636.11
  4. Step 4: Simplify right side
    1,138,427.70x = 561,110,037,430.15
  5. Step 5: Solve for x
    x = 561,110,037,430.15/1,138,427.70
  6. Step 6: Final answer
    x = 492,881.57

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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.