Home / 648,870.86-973,398.90-199,629.20

Finding the Fourth Proportional to 648,870.86, 973,398.90 and 199,629.20

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Solution

The fourth proportional to 648,870.86, 973,398.90 and 199,629.20 is: 299,472.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,870.86 : 973,398.90 = 199,629.20 : x
  2. Step 2: Convert to fraction form
    648,870.86/973,398.90 = 199,629.20/x
  3. Step 3: Cross multiply
    648,870.86x = 973,398.90 × 199,629.20
  4. Step 4: Simplify right side
    648,870.86x = 194,318,843,687.88
  5. Step 5: Solve for x
    x = 194,318,843,687.88/648,870.86
  6. Step 6: Final answer
    x = 299,472.29

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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.