Home / 3,118,327.32-4,303,291.69-1,687,543.32

Finding the Fourth Proportional to 3,118,327.32, 4,303,291.69 and 1,687,543.32

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Solution

The fourth proportional to 3,118,327.32, 4,303,291.69 and 1,687,543.32 is: 2,328,809.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118,327.32 : 4,303,291.69 = 1,687,543.32 : x
  2. Step 2: Convert to fraction form
    3,118,327.32/4,303,291.69 = 1,687,543.32/x
  3. Step 3: Cross multiply
    3,118,327.32x = 4,303,291.69 × 1,687,543.32
  4. Step 4: Simplify right side
    3,118,327.32x = 7,261,991,145,471.01
  5. Step 5: Solve for x
    x = 7,261,991,145,471.01/3,118,327.32
  6. Step 6: Final answer
    x = 2,328,809.78

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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.