Home / 1,345,856.99-2,019,085.55-386,237.79

Finding the Fourth Proportional to 1,345,856.99, 2,019,085.55 and 386,237.79

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Solution

The fourth proportional to 1,345,856.99, 2,019,085.55 and 386,237.79 is: 579,442.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,856.99 : 2,019,085.55 = 386,237.79 : x
  2. Step 2: Convert to fraction form
    1,345,856.99/2,019,085.55 = 386,237.79/x
  3. Step 3: Cross multiply
    1,345,856.99x = 2,019,085.55 × 386,237.79
  4. Step 4: Simplify right side
    1,345,856.99x = 779,847,140,652.94
  5. Step 5: Solve for x
    x = 779,847,140,652.94/1,345,856.99
  6. Step 6: Final answer
    x = 579,442.80

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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.