Home / 1,022,679.72-1,411,397.88-764,108.04

Finding the Fourth Proportional to 1,022,679.72, 1,411,397.88 and 764,108.04

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Solution

The fourth proportional to 1,022,679.72, 1,411,397.88 and 764,108.04 is: 1,054,543.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,022,679.72 : 1,411,397.88 = 764,108.04 : x
  2. Step 2: Convert to fraction form
    1,022,679.72/1,411,397.88 = 764,108.04/x
  3. Step 3: Cross multiply
    1,022,679.72x = 1,411,397.88 × 764,108.04
  4. Step 4: Simplify right side
    1,022,679.72x = 1,078,460,467,746.96
  5. Step 5: Solve for x
    x = 1,078,460,467,746.96/1,022,679.72
  6. Step 6: Final answer
    x = 1,054,543.71

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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.