Home / 1,015,230.78-1,521,820.83-636,417.03

Finding the Fourth Proportional to 1,015,230.78, 1,521,820.83 and 636,417.03

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Solution

The fourth proportional to 1,015,230.78, 1,521,820.83 and 636,417.03 is: 953,982.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,015,230.78 : 1,521,820.83 = 636,417.03 : x
  2. Step 2: Convert to fraction form
    1,015,230.78/1,521,820.83 = 636,417.03/x
  3. Step 3: Cross multiply
    1,015,230.78x = 1,521,820.83 × 636,417.03
  4. Step 4: Simplify right side
    1,015,230.78x = 968,512,692,820.74
  5. Step 5: Solve for x
    x = 968,512,692,820.74/1,015,230.78
  6. Step 6: Final answer
    x = 953,982.79

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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.