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Finding the Fourth Proportional to 811,650, 1,120,080.84 and 453,954

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Solution

The fourth proportional to 811,650, 1,120,080.84 and 453,954 is: 626,458.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,650 : 1,120,080.84 = 453,954 : x
  2. Step 2: Convert to fraction form
    811,650/1,120,080.84 = 453,954/x
  3. Step 3: Cross multiply
    811,650x = 1,120,080.84 × 453,954
  4. Step 4: Simplify right side
    811,650x = 508,465,177,641.36
  5. Step 5: Solve for x
    x = 508,465,177,641.36/811,650
  6. Step 6: Final answer
    x = 626,458.67

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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.