Home / 1,038,163.30-1,556,953.35-328,408.90

Finding the Fourth Proportional to 1,038,163.30, 1,556,953.35 and 328,408.90

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Solution

The fourth proportional to 1,038,163.30, 1,556,953.35 and 328,408.90 is: 492,521.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,163.30 : 1,556,953.35 = 328,408.90 : x
  2. Step 2: Convert to fraction form
    1,038,163.30/1,556,953.35 = 328,408.90/x
  3. Step 3: Cross multiply
    1,038,163.30x = 1,556,953.35 × 328,408.90
  4. Step 4: Simplify right side
    1,038,163.30x = 511,317,337,024.82
  5. Step 5: Solve for x
    x = 511,317,337,024.82/1,038,163.30
  6. Step 6: Final answer
    x = 492,521.11

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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.