Home / 811,345.82-1,119,581.87-448,761.87

Finding the Fourth Proportional to 811,345.82, 1,119,581.87 and 448,761.87

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Solution

The fourth proportional to 811,345.82, 1,119,581.87 and 448,761.87 is: 619,249.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,345.82 : 1,119,581.87 = 448,761.87 : x
  2. Step 2: Convert to fraction form
    811,345.82/1,119,581.87 = 448,761.87/x
  3. Step 3: Cross multiply
    811,345.82x = 1,119,581.87 × 448,761.87
  4. Step 4: Simplify right side
    811,345.82x = 502,425,651,355.49
  5. Step 5: Solve for x
    x = 502,425,651,355.49/811,345.82
  6. Step 6: Final answer
    x = 619,249.70

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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.