Home / 567,255.08-782,828.40-312,622.66

Finding the Fourth Proportional to 567,255.08, 782,828.40 and 312,622.66

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Solution

The fourth proportional to 567,255.08, 782,828.40 and 312,622.66 is: 431,428.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,255.08 : 782,828.40 = 312,622.66 : x
  2. Step 2: Convert to fraction form
    567,255.08/782,828.40 = 312,622.66/x
  3. Step 3: Cross multiply
    567,255.08x = 782,828.40 × 312,622.66
  4. Step 4: Simplify right side
    567,255.08x = 244,729,896,731.54
  5. Step 5: Solve for x
    x = 244,729,896,731.54/567,255.08
  6. Step 6: Final answer
    x = 431,428.30

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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.