Home / 918,735.61-1,267,912.44-510,928.57

Finding the Fourth Proportional to 918,735.61, 1,267,912.44 and 510,928.57

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Solution

The fourth proportional to 918,735.61, 1,267,912.44 and 510,928.57 is: 705,113.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,735.61 : 1,267,912.44 = 510,928.57 : x
  2. Step 2: Convert to fraction form
    918,735.61/1,267,912.44 = 510,928.57/x
  3. Step 3: Cross multiply
    918,735.61x = 1,267,912.44 × 510,928.57
  4. Step 4: Simplify right side
    918,735.61x = 647,812,689,854.41
  5. Step 5: Solve for x
    x = 647,812,689,854.41/918,735.61
  6. Step 6: Final answer
    x = 705,113.29

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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.