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Finding the Fourth Proportional to 402,572.03, 555,601.95 and 259,747.56

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Solution

The fourth proportional to 402,572.03, 555,601.95 and 259,747.56 is: 358,485.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,572.03 : 555,601.95 = 259,747.56 : x
  2. Step 2: Convert to fraction form
    402,572.03/555,601.95 = 259,747.56/x
  3. Step 3: Cross multiply
    402,572.03x = 555,601.95 × 259,747.56
  4. Step 4: Simplify right side
    402,572.03x = 144,316,250,843.74
  5. Step 5: Solve for x
    x = 144,316,250,843.74/402,572.03
  6. Step 6: Final answer
    x = 358,485.54

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.