Home / 1,103,409.80-1,655,933.90-439,038.60

Finding the Fourth Proportional to 1,103,409.80, 1,655,933.90 and 439,038.60

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Solution

The fourth proportional to 1,103,409.80, 1,655,933.90 and 439,038.60 is: 658,883.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,103,409.80 : 1,655,933.90 = 439,038.60 : x
  2. Step 2: Convert to fraction form
    1,103,409.80/1,655,933.90 = 439,038.60/x
  3. Step 3: Cross multiply
    1,103,409.80x = 1,655,933.90 × 439,038.60
  4. Step 4: Simplify right side
    1,103,409.80x = 727,018,901,148.54
  5. Step 5: Solve for x
    x = 727,018,901,148.54/1,103,409.80
  6. Step 6: Final answer
    x = 658,883.85

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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.