Home / 405,899.51-559,771.19-348,520.83

Finding the Fourth Proportional to 405,899.51, 559,771.19 and 348,520.83

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Solution

The fourth proportional to 405,899.51, 559,771.19 and 348,520.83 is: 480,640.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,899.51 : 559,771.19 = 348,520.83 : x
  2. Step 2: Convert to fraction form
    405,899.51/559,771.19 = 348,520.83/x
  3. Step 3: Cross multiply
    405,899.51x = 559,771.19 × 348,520.83
  4. Step 4: Simplify right side
    405,899.51x = 195,091,917,214.10
  5. Step 5: Solve for x
    x = 195,091,917,214.10/405,899.51
  6. Step 6: Final answer
    x = 480,640.93

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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.