Home / 3,115,063-4,298,761.92-1,808,436.28

Finding the Fourth Proportional to 3,115,063, 4,298,761.92 and 1,808,436.28

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Solution

The fourth proportional to 3,115,063, 4,298,761.92 and 1,808,436.28 is: 2,495,627.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115,063 : 4,298,761.92 = 1,808,436.28 : x
  2. Step 2: Convert to fraction form
    3,115,063/4,298,761.92 = 1,808,436.28/x
  3. Step 3: Cross multiply
    3,115,063x = 4,298,761.92 × 1,808,436.28
  4. Step 4: Simplify right side
    3,115,063x = 7,774,037,015,210.46
  5. Step 5: Solve for x
    x = 7,774,037,015,210.46/3,115,063
  6. Step 6: Final answer
    x = 2,495,627.54

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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.