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Finding the Fourth Proportional to 555,075.81, 766,023.17 and 340,174.35

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Solution

The fourth proportional to 555,075.81, 766,023.17 and 340,174.35 is: 469,451.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,075.81 : 766,023.17 = 340,174.35 : x
  2. Step 2: Convert to fraction form
    555,075.81/766,023.17 = 340,174.35/x
  3. Step 3: Cross multiply
    555,075.81x = 766,023.17 × 340,174.35
  4. Step 4: Simplify right side
    555,075.81x = 260,581,432,238.82
  5. Step 5: Solve for x
    x = 260,581,432,238.82/555,075.81
  6. Step 6: Final answer
    x = 469,451.97

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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.