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Finding the Fourth Proportional to 525,596.80, 725,349.92 and 321,583.84

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Solution

The fourth proportional to 525,596.80, 725,349.92 and 321,583.84 is: 443,801.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,596.80 : 725,349.92 = 321,583.84 : x
  2. Step 2: Convert to fraction form
    525,596.80/725,349.92 = 321,583.84/x
  3. Step 3: Cross multiply
    525,596.80x = 725,349.92 × 321,583.84
  4. Step 4: Simplify right side
    525,596.80x = 233,260,812,617.29
  5. Step 5: Solve for x
    x = 233,260,812,617.29/525,596.80
  6. Step 6: Final answer
    x = 443,801.81

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1.5x scale

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.