Home / 858,451.52-1,286,697.74-345,788.36

Finding the Fourth Proportional to 858,451.52, 1,286,697.74 and 345,788.36

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Solution

The fourth proportional to 858,451.52, 1,286,697.74 and 345,788.36 is: 518,287.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,451.52 : 1,286,697.74 = 345,788.36 : x
  2. Step 2: Convert to fraction form
    858,451.52/1,286,697.74 = 345,788.36/x
  3. Step 3: Cross multiply
    858,451.52x = 1,286,697.74 × 345,788.36
  4. Step 4: Simplify right side
    858,451.52x = 444,925,101,330.31
  5. Step 5: Solve for x
    x = 444,925,101,330.31/858,451.52
  6. Step 6: Final answer
    x = 518,287.98

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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.