Home / 946,720.80-1,420,887.60-386,157.60

Finding the Fourth Proportional to 946,720.80, 1,420,887.60 and 386,157.60

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Solution

The fourth proportional to 946,720.80, 1,420,887.60 and 386,157.60 is: 579,565.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    946,720.80 : 1,420,887.60 = 386,157.60 : x
  2. Step 2: Convert to fraction form
    946,720.80/1,420,887.60 = 386,157.60/x
  3. Step 3: Cross multiply
    946,720.80x = 1,420,887.60 × 386,157.60
  4. Step 4: Simplify right side
    946,720.80x = 548,686,545,485.76
  5. Step 5: Solve for x
    x = 548,686,545,485.76/946,720.80
  6. Step 6: Final answer
    x = 579,565.32

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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.