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Finding the Fourth Proportional to 528,698.48, 793,203.24 and 212,992.88

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Solution

The fourth proportional to 528,698.48, 793,203.24 and 212,992.88 is: 319,551.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,698.48 : 793,203.24 = 212,992.88 : x
  2. Step 2: Convert to fraction form
    528,698.48/793,203.24 = 212,992.88/x
  3. Step 3: Cross multiply
    528,698.48x = 793,203.24 × 212,992.88
  4. Step 4: Simplify right side
    528,698.48x = 168,946,642,512.93
  5. Step 5: Solve for x
    x = 168,946,642,512.93/528,698.48
  6. Step 6: Final answer
    x = 319,551.97

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1.5x scale

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.