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Finding the Fourth Proportional to 555,602.56, 766,730.81 and 300,954.76

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Solution

The fourth proportional to 555,602.56, 766,730.81 and 300,954.76 is: 415,317.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,602.56 : 766,730.81 = 300,954.76 : x
  2. Step 2: Convert to fraction form
    555,602.56/766,730.81 = 300,954.76/x
  3. Step 3: Cross multiply
    555,602.56x = 766,730.81 × 300,954.76
  4. Step 4: Simplify right side
    555,602.56x = 230,751,286,908.16
  5. Step 5: Solve for x
    x = 230,751,286,908.16/555,602.56
  6. Step 6: Final answer
    x = 415,317.18

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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.