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Finding the Fourth Proportional to 575,480.40, 863,469.36 and 308,929.64

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Solution

The fourth proportional to 575,480.40, 863,469.36 and 308,929.64 is: 463,528.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,480.40 : 863,469.36 = 308,929.64 : x
  2. Step 2: Convert to fraction form
    575,480.40/863,469.36 = 308,929.64/x
  3. Step 3: Cross multiply
    575,480.40x = 863,469.36 × 308,929.64
  4. Step 4: Simplify right side
    575,480.40x = 266,751,278,535.83
  5. Step 5: Solve for x
    x = 266,751,278,535.83/575,480.40
  6. Step 6: Final answer
    x = 463,528.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.