Home / 564,374.16-778,845.84-309,749.04

Finding the Fourth Proportional to 564,374.16, 778,845.84 and 309,749.04

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Solution

The fourth proportional to 564,374.16, 778,845.84 and 309,749.04 is: 427,458.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,374.16 : 778,845.84 = 309,749.04 : x
  2. Step 2: Convert to fraction form
    564,374.16/778,845.84 = 309,749.04/x
  3. Step 3: Cross multiply
    564,374.16x = 778,845.84 × 309,749.04
  4. Step 4: Simplify right side
    564,374.16x = 241,246,751,247.99
  5. Step 5: Solve for x
    x = 241,246,751,247.99/564,374.16
  6. Step 6: Final answer
    x = 427,458.89

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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.