Home / 1,779,818.76-2,455,471.97-1,315,786.86

Finding the Fourth Proportional to 1,779,818.76, 2,455,471.97 and 1,315,786.86

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Solution

The fourth proportional to 1,779,818.76, 2,455,471.97 and 1,315,786.86 is: 1,815,284.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,779,818.76 : 2,455,471.97 = 1,315,786.86 : x
  2. Step 2: Convert to fraction form
    1,779,818.76/2,455,471.97 = 1,315,786.86/x
  3. Step 3: Cross multiply
    1,779,818.76x = 2,455,471.97 × 1,315,786.86
  4. Step 4: Simplify right side
    1,779,818.76x = 3,230,877,734,368.02
  5. Step 5: Solve for x
    x = 3,230,877,734,368.02/1,779,818.76
  6. Step 6: Final answer
    x = 1,815,284.69

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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.