Home / 1,315,817.46-1,816,128-856,121.01

Finding the Fourth Proportional to 1,315,817.46, 1,816,128 and 856,121.01

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Solution

The fourth proportional to 1,315,817.46, 1,816,128 and 856,121.01 is: 1,181,642.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,817.46 : 1,816,128 = 856,121.01 : x
  2. Step 2: Convert to fraction form
    1,315,817.46/1,816,128 = 856,121.01/x
  3. Step 3: Cross multiply
    1,315,817.46x = 1,816,128 × 856,121.01
  4. Step 4: Simplify right side
    1,315,817.46x = 1,554,825,337,649.28
  5. Step 5: Solve for x
    x = 1,554,825,337,649.28/1,315,817.46
  6. Step 6: Final answer
    x = 1,181,642.12

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1.5x scale

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.