Home / 648,720.56-973,173.96-199,479.20

Finding the Fourth Proportional to 648,720.56, 973,173.96 and 199,479.20

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Solution

The fourth proportional to 648,720.56, 973,173.96 and 199,479.20 is: 299,247.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,720.56 : 973,173.96 = 199,479.20 : x
  2. Step 2: Convert to fraction form
    648,720.56/973,173.96 = 199,479.20/x
  3. Step 3: Cross multiply
    648,720.56x = 973,173.96 × 199,479.20
  4. Step 4: Simplify right side
    648,720.56x = 194,127,963,001.63
  5. Step 5: Solve for x
    x = 194,127,963,001.63/648,720.56
  6. Step 6: Final answer
    x = 299,247.43

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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.