Home / 1,214,135.40-1,821,421.80-504,235.20

Finding the Fourth Proportional to 1,214,135.40, 1,821,421.80 and 504,235.20

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Solution

The fourth proportional to 1,214,135.40, 1,821,421.80 and 504,235.20 is: 756,443.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,135.40 : 1,821,421.80 = 504,235.20 : x
  2. Step 2: Convert to fraction form
    1,214,135.40/1,821,421.80 = 504,235.20/x
  3. Step 3: Cross multiply
    1,214,135.40x = 1,821,421.80 × 504,235.20
  4. Step 4: Simplify right side
    1,214,135.40x = 918,424,985,607.36
  5. Step 5: Solve for x
    x = 918,424,985,607.36/1,214,135.40
  6. Step 6: Final answer
    x = 756,443.63

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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.