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Finding the Fourth Proportional to 550,403.64, 759,595.59 and 305,468.55

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Solution

The fourth proportional to 550,403.64, 759,595.59 and 305,468.55 is: 421,568.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,403.64 : 759,595.59 = 305,468.55 : x
  2. Step 2: Convert to fraction form
    550,403.64/759,595.59 = 305,468.55/x
  3. Step 3: Cross multiply
    550,403.64x = 759,595.59 × 305,468.55
  4. Step 4: Simplify right side
    550,403.64x = 232,032,563,463.70
  5. Step 5: Solve for x
    x = 232,032,563,463.70/550,403.64
  6. Step 6: Final answer
    x = 421,568.00

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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.