Home / 1,379,971.22-2,070,251.73-420,503.43

Finding the Fourth Proportional to 1,379,971.22, 2,070,251.73 and 420,503.43

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Solution

The fourth proportional to 1,379,971.22, 2,070,251.73 and 420,503.43 is: 630,845.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,971.22 : 2,070,251.73 = 420,503.43 : x
  2. Step 2: Convert to fraction form
    1,379,971.22/2,070,251.73 = 420,503.43/x
  3. Step 3: Cross multiply
    1,379,971.22x = 2,070,251.73 × 420,503.43
  4. Step 4: Simplify right side
    1,379,971.22x = 870,547,961,191.88
  5. Step 5: Solve for x
    x = 870,547,961,191.88/1,379,971.22
  6. Step 6: Final answer
    x = 630,845.01

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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.