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Finding the Fourth Proportional to 555,106.05, 766,003.60 and 313,412.48

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Solution

The fourth proportional to 555,106.05, 766,003.60 and 313,412.48 is: 432,485.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,106.05 : 766,003.60 = 313,412.48 : x
  2. Step 2: Convert to fraction form
    555,106.05/766,003.60 = 313,412.48/x
  3. Step 3: Cross multiply
    555,106.05x = 766,003.60 × 313,412.48
  4. Step 4: Simplify right side
    555,106.05x = 240,075,088,231.37
  5. Step 5: Solve for x
    x = 240,075,088,231.37/555,106.05
  6. Step 6: Final answer
    x = 432,485.08

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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.