Home / 1,119,749.12-1,679,622.76-278,300.87

Finding the Fourth Proportional to 1,119,749.12, 1,679,622.76 and 278,300.87

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Solution

The fourth proportional to 1,119,749.12, 1,679,622.76 and 278,300.87 is: 417,451.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,749.12 : 1,679,622.76 = 278,300.87 : x
  2. Step 2: Convert to fraction form
    1,119,749.12/1,679,622.76 = 278,300.87/x
  3. Step 3: Cross multiply
    1,119,749.12x = 1,679,622.76 × 278,300.87
  4. Step 4: Simplify right side
    1,119,749.12x = 467,440,475,379.80
  5. Step 5: Solve for x
    x = 467,440,475,379.80/1,119,749.12
  6. Step 6: Final answer
    x = 417,451.08

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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.