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Finding the Fourth Proportional to 529,779.72, 731,307.78 and 325,913.25

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Solution

The fourth proportional to 529,779.72, 731,307.78 and 325,913.25 is: 449,890.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,779.72 : 731,307.78 = 325,913.25 : x
  2. Step 2: Convert to fraction form
    529,779.72/731,307.78 = 325,913.25/x
  3. Step 3: Cross multiply
    529,779.72x = 731,307.78 × 325,913.25
  4. Step 4: Simplify right side
    529,779.72x = 238,342,895,330.09
  5. Step 5: Solve for x
    x = 238,342,895,330.09/529,779.72
  6. Step 6: Final answer
    x = 449,890.56

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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.