Home / 330,869.44-456,395.04-288,529.60

Finding the Fourth Proportional to 330,869.44, 456,395.04 and 288,529.60

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Solution

The fourth proportional to 330,869.44, 456,395.04 and 288,529.60 is: 397,992.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,869.44 : 456,395.04 = 288,529.60 : x
  2. Step 2: Convert to fraction form
    330,869.44/456,395.04 = 288,529.60/x
  3. Step 3: Cross multiply
    330,869.44x = 456,395.04 × 288,529.60
  4. Step 4: Simplify right side
    330,869.44x = 131,683,478,333.18
  5. Step 5: Solve for x
    x = 131,683,478,333.18/330,869.44
  6. Step 6: Final answer
    x = 397,992.27

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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.