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Finding the Fourth Proportional to 505,610.40, 698,022.60 and 344,701.89

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Solution

The fourth proportional to 505,610.40, 698,022.60 and 344,701.89 is: 475,879.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,610.40 : 698,022.60 = 344,701.89 : x
  2. Step 2: Convert to fraction form
    505,610.40/698,022.60 = 344,701.89/x
  3. Step 3: Cross multiply
    505,610.40x = 698,022.60 × 344,701.89
  4. Step 4: Simplify right side
    505,610.40x = 240,609,709,482.71
  5. Step 5: Solve for x
    x = 240,609,709,482.71/505,610.40
  6. Step 6: Final answer
    x = 475,879.67

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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.