Home / 529,779.30-731,085.09-288,059.76

Finding the Fourth Proportional to 529,779.30, 731,085.09 and 288,059.76

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Solution

The fourth proportional to 529,779.30, 731,085.09 and 288,059.76 is: 397,516.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,779.30 : 731,085.09 = 288,059.76 : x
  2. Step 2: Convert to fraction form
    529,779.30/731,085.09 = 288,059.76/x
  3. Step 3: Cross multiply
    529,779.30x = 731,085.09 × 288,059.76
  4. Step 4: Simplify right side
    529,779.30x = 210,596,195,564.98
  5. Step 5: Solve for x
    x = 210,596,195,564.98/529,779.30
  6. Step 6: Final answer
    x = 397,516.84

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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.