Home / 914,634.60-1,369,619.10-728,010.60

Finding the Fourth Proportional to 914,634.60, 1,369,619.10 and 728,010.60

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Solution

The fourth proportional to 914,634.60, 1,369,619.10 and 728,010.60 is: 1,090,159.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,634.60 : 1,369,619.10 = 728,010.60 : x
  2. Step 2: Convert to fraction form
    914,634.60/1,369,619.10 = 728,010.60/x
  3. Step 3: Cross multiply
    914,634.60x = 1,369,619.10 × 728,010.60
  4. Step 4: Simplify right side
    914,634.60x = 997,097,222,762.46
  5. Step 5: Solve for x
    x = 997,097,222,762.46/914,634.60
  6. Step 6: Final answer
    x = 1,090,159.09

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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.