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Finding the Fourth Proportional to 531,779.72, 733,858.25 and 290,067.48

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Solution

The fourth proportional to 531,779.72, 733,858.25 and 290,067.48 is: 400,294.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,779.72 : 733,858.25 = 290,067.48 : x
  2. Step 2: Convert to fraction form
    531,779.72/733,858.25 = 290,067.48/x
  3. Step 3: Cross multiply
    531,779.72x = 733,858.25 × 290,067.48
  4. Step 4: Simplify right side
    531,779.72x = 212,868,411,804.37
  5. Step 5: Solve for x
    x = 212,868,411,804.37/531,779.72
  6. Step 6: Final answer
    x = 400,294.34

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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.