Home / 815,025.81-1,222,499.25-309,547.34

Finding the Fourth Proportional to 815,025.81, 1,222,499.25 and 309,547.34

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Solution

The fourth proportional to 815,025.81, 1,222,499.25 and 309,547.34 is: 464,306.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,025.81 : 1,222,499.25 = 309,547.34 : x
  2. Step 2: Convert to fraction form
    815,025.81/1,222,499.25 = 309,547.34/x
  3. Step 3: Cross multiply
    815,025.81x = 1,222,499.25 × 309,547.34
  4. Step 4: Simplify right side
    815,025.81x = 378,421,384,877.00
  5. Step 5: Solve for x
    x = 378,421,384,877.00/815,025.81
  6. Step 6: Final answer
    x = 464,306.01

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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.