Home / 3,120,445.38-4,306,240.54-1,689,661.38

Finding the Fourth Proportional to 3,120,445.38, 4,306,240.54 and 1,689,661.38

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Solution

The fourth proportional to 3,120,445.38, 4,306,240.54 and 1,689,661.38 is: 2,331,746.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,445.38 : 4,306,240.54 = 1,689,661.38 : x
  2. Step 2: Convert to fraction form
    3,120,445.38/4,306,240.54 = 1,689,661.38/x
  3. Step 3: Cross multiply
    3,120,445.38x = 4,306,240.54 × 1,689,661.38
  4. Step 4: Simplify right side
    3,120,445.38x = 7,276,088,333,428.35
  5. Step 5: Solve for x
    x = 7,276,088,333,428.35/3,120,445.38
  6. Step 6: Final answer
    x = 2,331,746.74

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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.