Home / 1,384,430.70-2,074,410.45-783,605.10

Finding the Fourth Proportional to 1,384,430.70, 2,074,410.45 and 783,605.10

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Solution

The fourth proportional to 1,384,430.70, 2,074,410.45 and 783,605.10 is: 1,174,142.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,430.70 : 2,074,410.45 = 783,605.10 : x
  2. Step 2: Convert to fraction form
    1,384,430.70/2,074,410.45 = 783,605.10/x
  3. Step 3: Cross multiply
    1,384,430.70x = 2,074,410.45 × 783,605.10
  4. Step 4: Simplify right side
    1,384,430.70x = 1,625,518,608,113.30
  5. Step 5: Solve for x
    x = 1,625,518,608,113.30/1,384,430.70
  6. Step 6: Final answer
    x = 1,174,142.27

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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.