Home / 1,367,551.17-2,051,353.26-420,921

Finding the Fourth Proportional to 1,367,551.17, 2,051,353.26 and 420,921

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Solution

The fourth proportional to 1,367,551.17, 2,051,353.26 and 420,921 is: 631,389.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,367,551.17 : 2,051,353.26 = 420,921 : x
  2. Step 2: Convert to fraction form
    1,367,551.17/2,051,353.26 = 420,921/x
  3. Step 3: Cross multiply
    1,367,551.17x = 2,051,353.26 × 420,921
  4. Step 4: Simplify right side
    1,367,551.17x = 863,457,665,552.46
  5. Step 5: Solve for x
    x = 863,457,665,552.46/1,367,551.17
  6. Step 6: Final answer
    x = 631,389.66

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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.