Home / 1,379,528.67-2,069,604.41-420,070.07

Finding the Fourth Proportional to 1,379,528.67, 2,069,604.41 and 420,070.07

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Solution

The fourth proportional to 1,379,528.67, 2,069,604.41 and 420,070.07 is: 630,199.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,528.67 : 2,069,604.41 = 420,070.07 : x
  2. Step 2: Convert to fraction form
    1,379,528.67/2,069,604.41 = 420,070.07/x
  3. Step 3: Cross multiply
    1,379,528.67x = 2,069,604.41 × 420,070.07
  4. Step 4: Simplify right side
    1,379,528.67x = 869,378,875,605.20
  5. Step 5: Solve for x
    x = 869,378,875,605.20/1,379,528.67
  6. Step 6: Final answer
    x = 630,199.93

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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.