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Finding the Fourth Proportional to 553,357.60, 830,782.68 and 354,067

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Solution

The fourth proportional to 553,357.60, 830,782.68 and 354,067 is: 531,578.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,357.60 : 830,782.68 = 354,067 : x
  2. Step 2: Convert to fraction form
    553,357.60/830,782.68 = 354,067/x
  3. Step 3: Cross multiply
    553,357.60x = 830,782.68 × 354,067
  4. Step 4: Simplify right side
    553,357.60x = 294,152,731,159.56
  5. Step 5: Solve for x
    x = 294,152,731,159.56/553,357.60
  6. Step 6: Final answer
    x = 531,578.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.