Home / 1,367,555.16-2,051,359.28-420,925

Finding the Fourth Proportional to 1,367,555.16, 2,051,359.28 and 420,925

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Solution

The fourth proportional to 1,367,555.16, 2,051,359.28 and 420,925 is: 631,395.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,367,555.16 : 2,051,359.28 = 420,925 : x
  2. Step 2: Convert to fraction form
    1,367,555.16/2,051,359.28 = 420,925/x
  3. Step 3: Cross multiply
    1,367,555.16x = 2,051,359.28 × 420,925
  4. Step 4: Simplify right side
    1,367,555.16x = 863,468,404,934
  5. Step 5: Solve for x
    x = 863,468,404,934/1,367,555.16
  6. Step 6: Final answer
    x = 631,395.67

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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.