Home / 1,036,007.81-1,555,072.12-855,518.15

Finding the Fourth Proportional to 1,036,007.81, 1,555,072.12 and 855,518.15

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Solution

The fourth proportional to 1,036,007.81, 1,555,072.12 and 855,518.15 is: 1,284,152.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036,007.81 : 1,555,072.12 = 855,518.15 : x
  2. Step 2: Convert to fraction form
    1,036,007.81/1,555,072.12 = 855,518.15/x
  3. Step 3: Cross multiply
    1,036,007.81x = 1,555,072.12 × 855,518.15
  4. Step 4: Simplify right side
    1,036,007.81x = 1,330,392,423,218.98
  5. Step 5: Solve for x
    x = 1,330,392,423,218.98/1,036,007.81
  6. Step 6: Final answer
    x = 1,284,152.89

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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.