Home / 879,288.80-1,318,933.20-435,999.20

Finding the Fourth Proportional to 879,288.80, 1,318,933.20 and 435,999.20

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Solution

The fourth proportional to 879,288.80, 1,318,933.20 and 435,999.20 is: 653,998.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,288.80 : 1,318,933.20 = 435,999.20 : x
  2. Step 2: Convert to fraction form
    879,288.80/1,318,933.20 = 435,999.20/x
  3. Step 3: Cross multiply
    879,288.80x = 1,318,933.20 × 435,999.20
  4. Step 4: Simplify right side
    879,288.80x = 575,053,820,053.44
  5. Step 5: Solve for x
    x = 575,053,820,053.44/879,288.80
  6. Step 6: Final answer
    x = 653,998.80

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1.5x scale

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.