Home / 811,500.67-1,119,903.90-448,918.28

Finding the Fourth Proportional to 811,500.67, 1,119,903.90 and 448,918.28

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Solution

The fourth proportional to 811,500.67, 1,119,903.90 and 448,918.28 is: 619,525.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,500.67 : 1,119,903.90 = 448,918.28 : x
  2. Step 2: Convert to fraction form
    811,500.67/1,119,903.90 = 448,918.28/x
  3. Step 3: Cross multiply
    811,500.67x = 1,119,903.90 × 448,918.28
  4. Step 4: Simplify right side
    811,500.67x = 502,745,332,553.29
  5. Step 5: Solve for x
    x = 502,745,332,553.29/811,500.67
  6. Step 6: Final answer
    x = 619,525.47

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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.