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Finding the Fourth Proportional to 811,528, 1,119,912.48 and 453,832

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Solution

The fourth proportional to 811,528, 1,119,912.48 and 453,832 is: 626,290.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,528 : 1,119,912.48 = 453,832 : x
  2. Step 2: Convert to fraction form
    811,528/1,119,912.48 = 453,832/x
  3. Step 3: Cross multiply
    811,528x = 1,119,912.48 × 453,832
  4. Step 4: Simplify right side
    811,528x = 508,252,120,623.36
  5. Step 5: Solve for x
    x = 508,252,120,623.36/811,528
  6. Step 6: Final answer
    x = 626,290.31

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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.