Home / 1,630,818.38-2,250,467.70-905,712.80

Finding the Fourth Proportional to 1,630,818.38, 2,250,467.70 and 905,712.80

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Solution

The fourth proportional to 1,630,818.38, 2,250,467.70 and 905,712.80 is: 1,249,849.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,630,818.38 : 2,250,467.70 = 905,712.80 : x
  2. Step 2: Convert to fraction form
    1,630,818.38/2,250,467.70 = 905,712.80/x
  3. Step 3: Cross multiply
    1,630,818.38x = 2,250,467.70 × 905,712.80
  4. Step 4: Simplify right side
    1,630,818.38x = 2,038,277,413,008.97
  5. Step 5: Solve for x
    x = 2,038,277,413,008.97/1,630,818.38
  6. Step 6: Final answer
    x = 1,249,849.43

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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.