Home / 1,389,271.75-2,083,316.53-856,649.77

Finding the Fourth Proportional to 1,389,271.75, 2,083,316.53 and 856,649.77

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Solution

The fourth proportional to 1,389,271.75, 2,083,316.53 and 856,649.77 is: 1,284,610.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,271.75 : 2,083,316.53 = 856,649.77 : x
  2. Step 2: Convert to fraction form
    1,389,271.75/2,083,316.53 = 856,649.77/x
  3. Step 3: Cross multiply
    1,389,271.75x = 2,083,316.53 × 856,649.77
  4. Step 4: Simplify right side
    1,389,271.75x = 1,784,672,626,261.70
  5. Step 5: Solve for x
    x = 1,784,672,626,261.70/1,389,271.75
  6. Step 6: Final answer
    x = 1,284,610.18

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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.