Home / 1,216,428.60-1,824,667.20-317,814.60

Finding the Fourth Proportional to 1,216,428.60, 1,824,667.20 and 317,814.60

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Solution

The fourth proportional to 1,216,428.60, 1,824,667.20 and 317,814.60 is: 476,728.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,428.60 : 1,824,667.20 = 317,814.60 : x
  2. Step 2: Convert to fraction form
    1,216,428.60/1,824,667.20 = 317,814.60/x
  3. Step 3: Cross multiply
    1,216,428.60x = 1,824,667.20 × 317,814.60
  4. Step 4: Simplify right side
    1,216,428.60x = 579,905,876,301.12
  5. Step 5: Solve for x
    x = 579,905,876,301.12/1,216,428.60
  6. Step 6: Final answer
    x = 476,728.25

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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.