Home / 1,015,723.98-1,401,690.15-556,830.21

Finding the Fourth Proportional to 1,015,723.98, 1,401,690.15 and 556,830.21

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Solution

The fourth proportional to 1,015,723.98, 1,401,690.15 and 556,830.21 is: 768,420.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,015,723.98 : 1,401,690.15 = 556,830.21 : x
  2. Step 2: Convert to fraction form
    1,015,723.98/1,401,690.15 = 556,830.21/x
  3. Step 3: Cross multiply
    1,015,723.98x = 1,401,690.15 × 556,830.21
  4. Step 4: Simplify right side
    1,015,723.98x = 780,503,414,291.06
  5. Step 5: Solve for x
    x = 780,503,414,291.06/1,015,723.98
  6. Step 6: Final answer
    x = 768,420.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.