Home / 627,870.12-942,223.95-228,510.78

Finding the Fourth Proportional to 627,870.12, 942,223.95 and 228,510.78

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Solution

The fourth proportional to 627,870.12, 942,223.95 and 228,510.78 is: 342,918.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,870.12 : 942,223.95 = 228,510.78 : x
  2. Step 2: Convert to fraction form
    627,870.12/942,223.95 = 228,510.78/x
  3. Step 3: Cross multiply
    627,870.12x = 942,223.95 × 228,510.78
  4. Step 4: Simplify right side
    627,870.12x = 215,308,329,749.18
  5. Step 5: Solve for x
    x = 215,308,329,749.18/627,870.12
  6. Step 6: Final answer
    x = 342,918.58

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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.