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Finding the Fourth Proportional to 516,961.12, 713,422.88 and 313,050.08

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Solution

The fourth proportional to 516,961.12, 713,422.88 and 313,050.08 is: 432,019.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,961.12 : 713,422.88 = 313,050.08 : x
  2. Step 2: Convert to fraction form
    516,961.12/713,422.88 = 313,050.08/x
  3. Step 3: Cross multiply
    516,961.12x = 713,422.88 × 313,050.08
  4. Step 4: Simplify right side
    516,961.12x = 223,337,089,657.83
  5. Step 5: Solve for x
    x = 223,337,089,657.83/516,961.12
  6. Step 6: Final answer
    x = 432,019.12

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.