Home / 1,950,319.20-2,919,776.40-1,390,447.20

Finding the Fourth Proportional to 1,950,319.20, 2,919,776.40 and 1,390,447.20

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Solution

The fourth proportional to 1,950,319.20, 2,919,776.40 and 1,390,447.20 is: 2,081,605.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,950,319.20 : 2,919,776.40 = 1,390,447.20 : x
  2. Step 2: Convert to fraction form
    1,950,319.20/2,919,776.40 = 1,390,447.20/x
  3. Step 3: Cross multiply
    1,950,319.20x = 2,919,776.40 × 1,390,447.20
  4. Step 4: Simplify right side
    1,950,319.20x = 4,059,794,920,006.08
  5. Step 5: Solve for x
    x = 4,059,794,920,006.08/1,950,319.20
  6. Step 6: Final answer
    x = 2,081,605.37

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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.