Home / 1,015,724.48-1,401,690.84-556,830.71

Finding the Fourth Proportional to 1,015,724.48, 1,401,690.84 and 556,830.71

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Solution

The fourth proportional to 1,015,724.48, 1,401,690.84 and 556,830.71 is: 768,421.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,015,724.48 : 1,401,690.84 = 556,830.71 : x
  2. Step 2: Convert to fraction form
    1,015,724.48/1,401,690.84 = 556,830.71/x
  3. Step 3: Cross multiply
    1,015,724.48x = 1,401,690.84 × 556,830.71
  4. Step 4: Simplify right side
    1,015,724.48x = 780,504,502,853.54
  5. Step 5: Solve for x
    x = 780,504,502,853.54/1,015,724.48
  6. Step 6: Final answer
    x = 768,421.48

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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.