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Finding the Fourth Proportional to 436,779.36, 602,709.12 and 245,789.64

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Solution

The fourth proportional to 436,779.36, 602,709.12 and 245,789.64 is: 339,163.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,779.36 : 602,709.12 = 245,789.64 : x
  2. Step 2: Convert to fraction form
    436,779.36/602,709.12 = 245,789.64/x
  3. Step 3: Cross multiply
    436,779.36x = 602,709.12 × 245,789.64
  4. Step 4: Simplify right side
    436,779.36x = 148,139,657,629.52
  5. Step 5: Solve for x
    x = 148,139,657,629.52/436,779.36
  6. Step 6: Final answer
    x = 339,163.59

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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.