Home / 918,828.42-1,268,010.64-556,318.60

Finding the Fourth Proportional to 918,828.42, 1,268,010.64 and 556,318.60

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Solution

The fourth proportional to 918,828.42, 1,268,010.64 and 556,318.60 is: 767,736.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,828.42 : 1,268,010.64 = 556,318.60 : x
  2. Step 2: Convert to fraction form
    918,828.42/1,268,010.64 = 556,318.60/x
  3. Step 3: Cross multiply
    918,828.42x = 1,268,010.64 × 556,318.60
  4. Step 4: Simplify right side
    918,828.42x = 705,417,904,029.90
  5. Step 5: Solve for x
    x = 705,417,904,029.90/918,828.42
  6. Step 6: Final answer
    x = 767,736.27

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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.