Home / 695,079.23-958,986.29-389,110.55

Finding the Fourth Proportional to 695,079.23, 958,986.29 and 389,110.55

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Solution

The fourth proportional to 695,079.23, 958,986.29 and 389,110.55 is: 536,847.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,079.23 : 958,986.29 = 389,110.55 : x
  2. Step 2: Convert to fraction form
    695,079.23/958,986.29 = 389,110.55/x
  3. Step 3: Cross multiply
    695,079.23x = 958,986.29 × 389,110.55
  4. Step 4: Simplify right side
    695,079.23x = 373,151,680,798.81
  5. Step 5: Solve for x
    x = 373,151,680,798.81/695,079.23
  6. Step 6: Final answer
    x = 536,847.69

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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.