Home / 646,015.45-891,492.43-359,535.49

Finding the Fourth Proportional to 646,015.45, 891,492.43 and 359,535.49

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Solution

The fourth proportional to 646,015.45, 891,492.43 and 359,535.49 is: 496,154.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,015.45 : 891,492.43 = 359,535.49 : x
  2. Step 2: Convert to fraction form
    646,015.45/891,492.43 = 359,535.49/x
  3. Step 3: Cross multiply
    646,015.45x = 891,492.43 × 359,535.49
  4. Step 4: Simplify right side
    646,015.45x = 320,523,167,651.34
  5. Step 5: Solve for x
    x = 320,523,167,651.34/646,015.45
  6. Step 6: Final answer
    x = 496,154.03

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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.