Home / 1,040,470.30-1,558,081.05-830,518.30

Finding the Fourth Proportional to 1,040,470.30, 1,558,081.05 and 830,518.30

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Solution

The fourth proportional to 1,040,470.30, 1,558,081.05 and 830,518.30 is: 1,243,682.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,470.30 : 1,558,081.05 = 830,518.30 : x
  2. Step 2: Convert to fraction form
    1,040,470.30/1,558,081.05 = 830,518.30/x
  3. Step 3: Cross multiply
    1,040,470.30x = 1,558,081.05 × 830,518.30
  4. Step 4: Simplify right side
    1,040,470.30x = 1,294,014,824,908.22
  5. Step 5: Solve for x
    x = 1,294,014,824,908.22/1,040,470.30
  6. Step 6: Final answer
    x = 1,243,682.62

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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.