Home / 691,143.12-1,036,802.34-270,364.32

Finding the Fourth Proportional to 691,143.12, 1,036,802.34 and 270,364.32

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Solution

The fourth proportional to 691,143.12, 1,036,802.34 and 270,364.32 is: 405,580.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,143.12 : 1,036,802.34 = 270,364.32 : x
  2. Step 2: Convert to fraction form
    691,143.12/1,036,802.34 = 270,364.32/x
  3. Step 3: Cross multiply
    691,143.12x = 1,036,802.34 × 270,364.32
  4. Step 4: Simplify right side
    691,143.12x = 280,314,359,628.51
  5. Step 5: Solve for x
    x = 280,314,359,628.51/691,143.12
  6. Step 6: Final answer
    x = 405,580.77

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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.