Home / 707,072.52-975,749.94-389,120.52

Finding the Fourth Proportional to 707,072.52, 975,749.94 and 389,120.52

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Solution

The fourth proportional to 707,072.52, 975,749.94 and 389,120.52 is: 536,980.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,072.52 : 975,749.94 = 389,120.52 : x
  2. Step 2: Convert to fraction form
    707,072.52/975,749.94 = 389,120.52/x
  3. Step 3: Cross multiply
    707,072.52x = 975,749.94 × 389,120.52
  4. Step 4: Simplify right side
    707,072.52x = 379,684,324,042.77
  5. Step 5: Solve for x
    x = 379,684,324,042.77/707,072.52
  6. Step 6: Final answer
    x = 536,980.74

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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.