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Finding the Fourth Proportional to 555,659.06, 766,808.81 and 301,011.30

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Solution

The fourth proportional to 555,659.06, 766,808.81 and 301,011.30 is: 415,395.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,659.06 : 766,808.81 = 301,011.30 : x
  2. Step 2: Convert to fraction form
    555,659.06/766,808.81 = 301,011.30/x
  3. Step 3: Cross multiply
    555,659.06x = 766,808.81 × 301,011.30
  4. Step 4: Simplify right side
    555,659.06x = 230,818,116,749.55
  5. Step 5: Solve for x
    x = 230,818,116,749.55/555,659.06
  6. Step 6: Final answer
    x = 415,395.22

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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.