Home / 774,558.55-1,069,006.32-557,485.03

Finding the Fourth Proportional to 774,558.55, 1,069,006.32 and 557,485.03

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Solution

The fourth proportional to 774,558.55, 1,069,006.32 and 557,485.03 is: 769,412.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,558.55 : 1,069,006.32 = 557,485.03 : x
  2. Step 2: Convert to fraction form
    774,558.55/1,069,006.32 = 557,485.03/x
  3. Step 3: Cross multiply
    774,558.55x = 1,069,006.32 × 557,485.03
  4. Step 4: Simplify right side
    774,558.55x = 595,955,020,375.39
  5. Step 5: Solve for x
    x = 595,955,020,375.39/774,558.55
  6. Step 6: Final answer
    x = 769,412.49

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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.