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Finding the Fourth Proportional to 469,798.84, 648,315.40 and 276,228.42

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Solution

The fourth proportional to 469,798.84, 648,315.40 and 276,228.42 is: 381,191.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,798.84 : 648,315.40 = 276,228.42 : x
  2. Step 2: Convert to fraction form
    469,798.84/648,315.40 = 276,228.42/x
  3. Step 3: Cross multiply
    469,798.84x = 648,315.40 × 276,228.42
  4. Step 4: Simplify right side
    469,798.84x = 179,083,138,603.67
  5. Step 5: Solve for x
    x = 179,083,138,603.67/469,798.84
  6. Step 6: Final answer
    x = 381,191.10

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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.