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Finding the Fourth Proportional to 695,492.01, 959,802.75 and 389,581.47

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Solution

The fourth proportional to 695,492.01, 959,802.75 and 389,581.47 is: 537,635.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,492.01 : 959,802.75 = 389,581.47 : x
  2. Step 2: Convert to fraction form
    695,492.01/959,802.75 = 389,581.47/x
  3. Step 3: Cross multiply
    695,492.01x = 959,802.75 × 389,581.47
  4. Step 4: Simplify right side
    695,492.01x = 373,921,366,255.04
  5. Step 5: Solve for x
    x = 373,921,366,255.04/695,492.01
  6. Step 6: Final answer
    x = 537,635.75

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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.