Home / 1,984,854.20-2,739,715.54-1,577,678.54

Finding the Fourth Proportional to 1,984,854.20, 2,739,715.54 and 1,577,678.54

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Solution

The fourth proportional to 1,984,854.20, 2,739,715.54 and 1,577,678.54 is: 2,177,686.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,984,854.20 : 2,739,715.54 = 1,577,678.54 : x
  2. Step 2: Convert to fraction form
    1,984,854.20/2,739,715.54 = 1,577,678.54/x
  3. Step 3: Cross multiply
    1,984,854.20x = 2,739,715.54 × 1,577,678.54
  4. Step 4: Simplify right side
    1,984,854.20x = 4,322,390,413,162.51
  5. Step 5: Solve for x
    x = 4,322,390,413,162.51/1,984,854.20
  6. Step 6: Final answer
    x = 2,177,686.61

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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.