Home / 2,289,385.20-3,159,363.78-1,430,443.56

Finding the Fourth Proportional to 2,289,385.20, 3,159,363.78 and 1,430,443.56

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Solution

The fourth proportional to 2,289,385.20, 3,159,363.78 and 1,430,443.56 is: 1,974,019.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289,385.20 : 3,159,363.78 = 1,430,443.56 : x
  2. Step 2: Convert to fraction form
    2,289,385.20/3,159,363.78 = 1,430,443.56/x
  3. Step 3: Cross multiply
    2,289,385.20x = 3,159,363.78 × 1,430,443.56
  4. Step 4: Simplify right side
    2,289,385.20x = 4,519,291,572,798.26
  5. Step 5: Solve for x
    x = 4,519,291,572,798.26/2,289,385.20
  6. Step 6: Final answer
    x = 1,974,019.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.