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Finding the Fourth Proportional to 611,840.50, 844,211.88 and 370,075.78

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Solution

The fourth proportional to 611,840.50, 844,211.88 and 370,075.78 is: 510,627.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,840.50 : 844,211.88 = 370,075.78 : x
  2. Step 2: Convert to fraction form
    611,840.50/844,211.88 = 370,075.78/x
  3. Step 3: Cross multiply
    611,840.50x = 844,211.88 × 370,075.78
  4. Step 4: Simplify right side
    611,840.50x = 312,422,369,976.27
  5. Step 5: Solve for x
    x = 312,422,369,976.27/611,840.50
  6. Step 6: Final answer
    x = 510,627.15

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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.