Home / 811,765.56-1,216,203.78-692,224.20

Finding the Fourth Proportional to 811,765.56, 1,216,203.78 and 692,224.20

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Solution

The fourth proportional to 811,765.56, 1,216,203.78 and 692,224.20 is: 1,037,104.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,765.56 : 1,216,203.78 = 692,224.20 : x
  2. Step 2: Convert to fraction form
    811,765.56/1,216,203.78 = 692,224.20/x
  3. Step 3: Cross multiply
    811,765.56x = 1,216,203.78 × 692,224.20
  4. Step 4: Simplify right side
    811,765.56x = 841,885,688,647.48
  5. Step 5: Solve for x
    x = 841,885,688,647.48/811,765.56
  6. Step 6: Final answer
    x = 1,037,104.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.