Home / 805,130.82-1,111,138.56-482,835.06

Finding the Fourth Proportional to 805,130.82, 1,111,138.56 and 482,835.06

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Solution

The fourth proportional to 805,130.82, 1,111,138.56 and 482,835.06 is: 666,347.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,130.82 : 1,111,138.56 = 482,835.06 : x
  2. Step 2: Convert to fraction form
    805,130.82/1,111,138.56 = 482,835.06/x
  3. Step 3: Cross multiply
    805,130.82x = 1,111,138.56 × 482,835.06
  4. Step 4: Simplify right side
    805,130.82x = 536,496,653,285.91
  5. Step 5: Solve for x
    x = 536,496,653,285.91/805,130.82
  6. Step 6: Final answer
    x = 666,347.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.