Home / 379,157.02-522,996.39-288,313.81

Finding the Fourth Proportional to 379,157.02, 522,996.39 and 288,313.81

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Solution

The fourth proportional to 379,157.02, 522,996.39 and 288,313.81 is: 397,690.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,157.02 : 522,996.39 = 288,313.81 : x
  2. Step 2: Convert to fraction form
    379,157.02/522,996.39 = 288,313.81/x
  3. Step 3: Cross multiply
    379,157.02x = 522,996.39 × 288,313.81
  4. Step 4: Simplify right side
    379,157.02x = 150,787,080,509.66
  5. Step 5: Solve for x
    x = 150,787,080,509.66/379,157.02
  6. Step 6: Final answer
    x = 397,690.33

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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.