Home / 811,315.92-1,119,609.36-448,755.24

Finding the Fourth Proportional to 811,315.92, 1,119,609.36 and 448,755.24

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Solution

The fourth proportional to 811,315.92, 1,119,609.36 and 448,755.24 is: 619,278.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,315.92 : 1,119,609.36 = 448,755.24 : x
  2. Step 2: Convert to fraction form
    811,315.92/1,119,609.36 = 448,755.24/x
  3. Step 3: Cross multiply
    811,315.92x = 1,119,609.36 × 448,755.24
  4. Step 4: Simplify right side
    811,315.92x = 502,430,567,053.05
  5. Step 5: Solve for x
    x = 502,430,567,053.05/811,315.92
  6. Step 6: Final answer
    x = 619,278.58

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Double scale
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1.5x scale

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.