Home / 653,785.12-902,296.68-395,804.26

Finding the Fourth Proportional to 653,785.12, 902,296.68 and 395,804.26

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Solution

The fourth proportional to 653,785.12, 902,296.68 and 395,804.26 is: 546,254.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,785.12 : 902,296.68 = 395,804.26 : x
  2. Step 2: Convert to fraction form
    653,785.12/902,296.68 = 395,804.26/x
  3. Step 3: Cross multiply
    653,785.12x = 902,296.68 × 395,804.26
  4. Step 4: Simplify right side
    653,785.12x = 357,132,869,727.86
  5. Step 5: Solve for x
    x = 357,132,869,727.86/653,785.12
  6. Step 6: Final answer
    x = 546,254.20

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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.