Home / 1,556,515.10-2,147,985.29-868,186.42

Finding the Fourth Proportional to 1,556,515.10, 2,147,985.29 and 868,186.42

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Solution

The fourth proportional to 1,556,515.10, 2,147,985.29 and 868,186.42 is: 1,198,094.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556,515.10 : 2,147,985.29 = 868,186.42 : x
  2. Step 2: Convert to fraction form
    1,556,515.10/2,147,985.29 = 868,186.42/x
  3. Step 3: Cross multiply
    1,556,515.10x = 2,147,985.29 × 868,186.42
  4. Step 4: Simplify right side
    1,556,515.10x = 1,864,851,655,938.26
  5. Step 5: Solve for x
    x = 1,864,851,655,938.26/1,556,515.10
  6. Step 6: Final answer
    x = 1,198,094.16

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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.