Home / 1,620,123.72-2,430,176.77-660,575.58

Finding the Fourth Proportional to 1,620,123.72, 2,430,176.77 and 660,575.58

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Solution

The fourth proportional to 1,620,123.72, 2,430,176.77 and 660,575.58 is: 990,859.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620,123.72 : 2,430,176.77 = 660,575.58 : x
  2. Step 2: Convert to fraction form
    1,620,123.72/2,430,176.77 = 660,575.58/x
  3. Step 3: Cross multiply
    1,620,123.72x = 2,430,176.77 × 660,575.58
  4. Step 4: Simplify right side
    1,620,123.72x = 1,605,315,429,345.28
  5. Step 5: Solve for x
    x = 1,605,315,429,345.28/1,620,123.72
  6. Step 6: Final answer
    x = 990,859.78

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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.