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Finding the Fourth Proportional to 535,783.90, 804,597.45 and 379,111.90

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Solution

The fourth proportional to 535,783.90, 804,597.45 and 379,111.90 is: 569,319.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,783.90 : 804,597.45 = 379,111.90 : x
  2. Step 2: Convert to fraction form
    535,783.90/804,597.45 = 379,111.90/x
  3. Step 3: Cross multiply
    535,783.90x = 804,597.45 × 379,111.90
  4. Step 4: Simplify right side
    535,783.90x = 305,032,468,004.66
  5. Step 5: Solve for x
    x = 305,032,468,004.66/535,783.90
  6. Step 6: Final answer
    x = 569,319.96

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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.