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Finding the Fourth Proportional to 556,558.86, 768,051.48 and 314,836.32

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Solution

The fourth proportional to 556,558.86, 768,051.48 and 314,836.32 is: 434,474.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,558.86 : 768,051.48 = 314,836.32 : x
  2. Step 2: Convert to fraction form
    556,558.86/768,051.48 = 314,836.32/x
  3. Step 3: Cross multiply
    556,558.86x = 768,051.48 × 314,836.32
  4. Step 4: Simplify right side
    556,558.86x = 241,810,501,533.75
  5. Step 5: Solve for x
    x = 241,810,501,533.75/556,558.86
  6. Step 6: Final answer
    x = 434,474.26

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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.