Home / 648,912.20-973,368.30-383,191.70

Finding the Fourth Proportional to 648,912.20, 973,368.30 and 383,191.70

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Solution

The fourth proportional to 648,912.20, 973,368.30 and 383,191.70 is: 574,787.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,912.20 : 973,368.30 = 383,191.70 : x
  2. Step 2: Convert to fraction form
    648,912.20/973,368.30 = 383,191.70/x
  3. Step 3: Cross multiply
    648,912.20x = 973,368.30 × 383,191.70
  4. Step 4: Simplify right side
    648,912.20x = 372,986,653,603.11
  5. Step 5: Solve for x
    x = 372,986,653,603.11/648,912.20
  6. Step 6: Final answer
    x = 574,787.55

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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.