Home / 589,279.39-884,359.32-399,289.30

Finding the Fourth Proportional to 589,279.39, 884,359.32 and 399,289.30

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Solution

The fourth proportional to 589,279.39, 884,359.32 and 399,289.30 is: 599,232.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,279.39 : 884,359.32 = 399,289.30 : x
  2. Step 2: Convert to fraction form
    589,279.39/884,359.32 = 399,289.30/x
  3. Step 3: Cross multiply
    589,279.39x = 884,359.32 × 399,289.30
  4. Step 4: Simplify right side
    589,279.39x = 353,115,213,831.28
  5. Step 5: Solve for x
    x = 353,115,213,831.28/589,279.39
  6. Step 6: Final answer
    x = 599,232.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.