Home / 379,533.47-523,514.21-288,690.08

Finding the Fourth Proportional to 379,533.47, 523,514.21 and 288,690.08

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Solution

The fourth proportional to 379,533.47, 523,514.21 and 288,690.08 is: 398,208.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,533.47 : 523,514.21 = 288,690.08 : x
  2. Step 2: Convert to fraction form
    379,533.47/523,514.21 = 288,690.08/x
  3. Step 3: Cross multiply
    379,533.47x = 523,514.21 × 288,690.08
  4. Step 4: Simplify right side
    379,533.47x = 151,133,355,105.02
  5. Step 5: Solve for x
    x = 151,133,355,105.02/379,533.47
  6. Step 6: Final answer
    x = 398,208.25

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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.