Home / 2,166,368.13-2,989,756.35-1,199,588.40

Finding the Fourth Proportional to 2,166,368.13, 2,989,756.35 and 1,199,588.40

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Solution

The fourth proportional to 2,166,368.13, 2,989,756.35 and 1,199,588.40 is: 1,655,525.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166,368.13 : 2,989,756.35 = 1,199,588.40 : x
  2. Step 2: Convert to fraction form
    2,166,368.13/2,989,756.35 = 1,199,588.40/x
  3. Step 3: Cross multiply
    2,166,368.13x = 2,989,756.35 × 1,199,588.40
  4. Step 4: Simplify right side
    2,166,368.13x = 3,586,477,036,286.34
  5. Step 5: Solve for x
    x = 3,586,477,036,286.34/2,166,368.13
  6. Step 6: Final answer
    x = 1,655,525.20

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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.