Home / 858,485.40-1,286,691.30-437,544.60

Finding the Fourth Proportional to 858,485.40, 1,286,691.30 and 437,544.60

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Solution

The fourth proportional to 858,485.40, 1,286,691.30 and 437,544.60 is: 655,788.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,485.40 : 1,286,691.30 = 437,544.60 : x
  2. Step 2: Convert to fraction form
    858,485.40/1,286,691.30 = 437,544.60/x
  3. Step 3: Cross multiply
    858,485.40x = 1,286,691.30 × 437,544.60
  4. Step 4: Simplify right side
    858,485.40x = 562,984,830,181.98
  5. Step 5: Solve for x
    x = 562,984,830,181.98/858,485.40
  6. Step 6: Final answer
    x = 655,788.47

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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.