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Finding the Fourth Proportional to 555,603.06, 766,731.51 and 300,955.26

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Solution

The fourth proportional to 555,603.06, 766,731.51 and 300,955.26 is: 415,317.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,603.06 : 766,731.51 = 300,955.26 : x
  2. Step 2: Convert to fraction form
    555,603.06/766,731.51 = 300,955.26/x
  3. Step 3: Cross multiply
    555,603.06x = 766,731.51 × 300,955.26
  4. Step 4: Simplify right side
    555,603.06x = 230,751,880,942.24
  5. Step 5: Solve for x
    x = 230,751,880,942.24/555,603.06
  6. Step 6: Final answer
    x = 415,317.87

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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.