Home / 811,500.42-1,119,903.56-448,918.03

Finding the Fourth Proportional to 811,500.42, 1,119,903.56 and 448,918.03

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Solution

The fourth proportional to 811,500.42, 1,119,903.56 and 448,918.03 is: 619,525.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,500.42 : 1,119,903.56 = 448,918.03 : x
  2. Step 2: Convert to fraction form
    811,500.42/1,119,903.56 = 448,918.03/x
  3. Step 3: Cross multiply
    811,500.42x = 1,119,903.56 × 448,918.03
  4. Step 4: Simplify right side
    811,500.42x = 502,744,899,945.19
  5. Step 5: Solve for x
    x = 502,744,899,945.19/811,500.42
  6. Step 6: Final answer
    x = 619,525.13

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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.