Home / 1,215,530.16-1,678,507.56-757,426.56

Finding the Fourth Proportional to 1,215,530.16, 1,678,507.56 and 757,426.56

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Solution

The fourth proportional to 1,215,530.16, 1,678,507.56 and 757,426.56 is: 1,045,919.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,530.16 : 1,678,507.56 = 757,426.56 : x
  2. Step 2: Convert to fraction form
    1,215,530.16/1,678,507.56 = 757,426.56/x
  3. Step 3: Cross multiply
    1,215,530.16x = 1,678,507.56 × 757,426.56
  4. Step 4: Simplify right side
    1,215,530.16x = 1,271,346,207,104.79
  5. Step 5: Solve for x
    x = 1,271,346,207,104.79/1,215,530.16
  6. Step 6: Final answer
    x = 1,045,919.10

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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.