Home / 728,066.60-1,091,840.70-328,898.60

Finding the Fourth Proportional to 728,066.60, 1,091,840.70 and 328,898.60

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Solution

The fourth proportional to 728,066.60, 1,091,840.70 and 328,898.60 is: 493,230.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,066.60 : 1,091,840.70 = 328,898.60 : x
  2. Step 2: Convert to fraction form
    728,066.60/1,091,840.70 = 328,898.60/x
  3. Step 3: Cross multiply
    728,066.60x = 1,091,840.70 × 328,898.60
  4. Step 4: Simplify right side
    728,066.60x = 359,104,877,653.02
  5. Step 5: Solve for x
    x = 359,104,877,653.02/728,066.60
  6. Step 6: Final answer
    x = 493,230.81

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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.