Home / 993,629.80-1,490,525.70-425,015.20

Finding the Fourth Proportional to 993,629.80, 1,490,525.70 and 425,015.20

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Solution

The fourth proportional to 993,629.80, 1,490,525.70 and 425,015.20 is: 637,557.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,629.80 : 1,490,525.70 = 425,015.20 : x
  2. Step 2: Convert to fraction form
    993,629.80/1,490,525.70 = 425,015.20/x
  3. Step 3: Cross multiply
    993,629.80x = 1,490,525.70 × 425,015.20
  4. Step 4: Simplify right side
    993,629.80x = 633,496,078,490.64
  5. Step 5: Solve for x
    x = 633,496,078,490.64/993,629.80
  6. Step 6: Final answer
    x = 637,557.45

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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.