Home / 589,122.50-812,989.06-320,850.50

Finding the Fourth Proportional to 589,122.50, 812,989.06 and 320,850.50

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Solution

The fourth proportional to 589,122.50, 812,989.06 and 320,850.50 is: 442,773.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,122.50 : 812,989.06 = 320,850.50 : x
  2. Step 2: Convert to fraction form
    589,122.50/812,989.06 = 320,850.50/x
  3. Step 3: Cross multiply
    589,122.50x = 812,989.06 × 320,850.50
  4. Step 4: Simplify right side
    589,122.50x = 260,847,946,395.53
  5. Step 5: Solve for x
    x = 260,847,946,395.53/589,122.50
  6. Step 6: Final answer
    x = 442,773.70

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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.