Home / 589,012.84-812,857.38-320,750.44

Finding the Fourth Proportional to 589,012.84, 812,857.38 and 320,750.44

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Solution

The fourth proportional to 589,012.84, 812,857.38 and 320,750.44 is: 442,646.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,012.84 : 812,857.38 = 320,750.44 : x
  2. Step 2: Convert to fraction form
    589,012.84/812,857.38 = 320,750.44/x
  3. Step 3: Cross multiply
    589,012.84x = 812,857.38 × 320,750.44
  4. Step 4: Simplify right side
    589,012.84x = 260,724,362,292.25
  5. Step 5: Solve for x
    x = 260,724,362,292.25/589,012.84
  6. Step 6: Final answer
    x = 442,646.31

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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.