Home / 1,921,651.76-2,651,880-1,050,490.24

Finding the Fourth Proportional to 1,921,651.76, 2,651,880 and 1,050,490.24

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Solution

The fourth proportional to 1,921,651.76, 2,651,880 and 1,050,490.24 is: 1,449,676.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921,651.76 : 2,651,880 = 1,050,490.24 : x
  2. Step 2: Convert to fraction form
    1,921,651.76/2,651,880 = 1,050,490.24/x
  3. Step 3: Cross multiply
    1,921,651.76x = 2,651,880 × 1,050,490.24
  4. Step 4: Simplify right side
    1,921,651.76x = 2,785,774,057,651.20
  5. Step 5: Solve for x
    x = 2,785,774,057,651.20/1,921,651.76
  6. Step 6: Final answer
    x = 1,449,676.84

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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.