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Finding the Fourth Proportional to 646,009.06, 891,492.50 and 359,596.81

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Solution

The fourth proportional to 646,009.06, 891,492.50 and 359,596.81 is: 496,243.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,009.06 : 891,492.50 = 359,596.81 : x
  2. Step 2: Convert to fraction form
    646,009.06/891,492.50 = 359,596.81/x
  3. Step 3: Cross multiply
    646,009.06x = 891,492.50 × 359,596.81
  4. Step 4: Simplify right side
    646,009.06x = 320,577,857,144.32
  5. Step 5: Solve for x
    x = 320,577,857,144.32/646,009.06
  6. Step 6: Final answer
    x = 496,243.59

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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.