Home / 1,091,789.94-1,638,192.16-417,648.40

Finding the Fourth Proportional to 1,091,789.94, 1,638,192.16 and 417,648.40

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Solution

The fourth proportional to 1,091,789.94, 1,638,192.16 and 417,648.40 is: 626,666.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,789.94 : 1,638,192.16 = 417,648.40 : x
  2. Step 2: Convert to fraction form
    1,091,789.94/1,638,192.16 = 417,648.40/x
  3. Step 3: Cross multiply
    1,091,789.94x = 1,638,192.16 × 417,648.40
  4. Step 4: Simplify right side
    1,091,789.94x = 684,188,334,516.54
  5. Step 5: Solve for x
    x = 684,188,334,516.54/1,091,789.94
  6. Step 6: Final answer
    x = 626,666.64

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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.