Home / 985,519.60-1,478,279.40-879,231.40

Finding the Fourth Proportional to 985,519.60, 1,478,279.40 and 879,231.40

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Solution

The fourth proportional to 985,519.60, 1,478,279.40 and 879,231.40 is: 1,318,847.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,519.60 : 1,478,279.40 = 879,231.40 : x
  2. Step 2: Convert to fraction form
    985,519.60/1,478,279.40 = 879,231.40/x
  3. Step 3: Cross multiply
    985,519.60x = 1,478,279.40 × 879,231.40
  4. Step 4: Simplify right side
    985,519.60x = 1,299,749,666,453.16
  5. Step 5: Solve for x
    x = 1,299,749,666,453.16/985,519.60
  6. Step 6: Final answer
    x = 1,318,847.10

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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.