Home / 1,404,715.40-1,938,516.25-823,820.12

Finding the Fourth Proportional to 1,404,715.40, 1,938,516.25 and 823,820.12

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Solution

The fourth proportional to 1,404,715.40, 1,938,516.25 and 823,820.12 is: 1,136,877.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,404,715.40 : 1,938,516.25 = 823,820.12 : x
  2. Step 2: Convert to fraction form
    1,404,715.40/1,938,516.25 = 823,820.12/x
  3. Step 3: Cross multiply
    1,404,715.40x = 1,938,516.25 × 823,820.12
  4. Step 4: Simplify right side
    1,404,715.40x = 1,596,988,689,696.95
  5. Step 5: Solve for x
    x = 1,596,988,689,696.95/1,404,715.40
  6. Step 6: Final answer
    x = 1,136,877.04

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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.