Home / 1,986,038.90-2,976,725.54-918,826.64

Finding the Fourth Proportional to 1,986,038.90, 2,976,725.54 and 918,826.64

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Solution

The fourth proportional to 1,986,038.90, 2,976,725.54 and 918,826.64 is: 1,377,160.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986,038.90 : 2,976,725.54 = 918,826.64 : x
  2. Step 2: Convert to fraction form
    1,986,038.90/2,976,725.54 = 918,826.64/x
  3. Step 3: Cross multiply
    1,986,038.90x = 2,976,725.54 × 918,826.64
  4. Step 4: Simplify right side
    1,986,038.90x = 2,735,094,726,120.39
  5. Step 5: Solve for x
    x = 2,735,094,726,120.39/1,986,038.90
  6. Step 6: Final answer
    x = 1,377,160.70

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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.