Home / 1,008,963.25-1,392,378.73-556,270.45

Finding the Fourth Proportional to 1,008,963.25, 1,392,378.73 and 556,270.45

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Solution

The fourth proportional to 1,008,963.25, 1,392,378.73 and 556,270.45 is: 767,658.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,963.25 : 1,392,378.73 = 556,270.45 : x
  2. Step 2: Convert to fraction form
    1,008,963.25/1,392,378.73 = 556,270.45/x
  3. Step 3: Cross multiply
    1,008,963.25x = 1,392,378.73 × 556,270.45
  4. Step 4: Simplify right side
    1,008,963.25x = 774,539,139,926.18
  5. Step 5: Solve for x
    x = 774,539,139,926.18/1,008,963.25
  6. Step 6: Final answer
    x = 767,658.43

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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.