Home / 1,015,320.78-1,401,142.62-562,611.78

Finding the Fourth Proportional to 1,015,320.78, 1,401,142.62 and 562,611.78

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Solution

The fourth proportional to 1,015,320.78, 1,401,142.62 and 562,611.78 is: 776,404.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,015,320.78 : 1,401,142.62 = 562,611.78 : x
  2. Step 2: Convert to fraction form
    1,015,320.78/1,401,142.62 = 562,611.78/x
  3. Step 3: Cross multiply
    1,015,320.78x = 1,401,142.62 × 562,611.78
  4. Step 4: Simplify right side
    1,015,320.78x = 788,299,343,472.06
  5. Step 5: Solve for x
    x = 788,299,343,472.06/1,015,320.78
  6. Step 6: Final answer
    x = 776,404.23

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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.