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Finding the Fourth Proportional to 1,075,610.40, 1,609,916.40 and 837,664.80

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Solution

The fourth proportional to 1,075,610.40, 1,609,916.40 and 837,664.80 is: 1,253,772.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,075,610.40 : 1,609,916.40 = 837,664.80 : x
  2. Step 2: Convert to fraction form
    1,075,610.40/1,609,916.40 = 837,664.80/x
  3. Step 3: Cross multiply
    1,075,610.40x = 1,609,916.40 × 837,664.80
  4. Step 4: Simplify right side
    1,075,610.40x = 1,348,570,299,222.72
  5. Step 5: Solve for x
    x = 1,348,570,299,222.72/1,075,610.40
  6. Step 6: Final answer
    x = 1,253,772.09

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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.