Home / 990,018.92-1,484,790.55-457,027.89

Finding the Fourth Proportional to 990,018.92, 1,484,790.55 and 457,027.89

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Solution

The fourth proportional to 990,018.92, 1,484,790.55 and 457,027.89 is: 685,432.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,018.92 : 1,484,790.55 = 457,027.89 : x
  2. Step 2: Convert to fraction form
    990,018.92/1,484,790.55 = 457,027.89/x
  3. Step 3: Cross multiply
    990,018.92x = 1,484,790.55 × 457,027.89
  4. Step 4: Simplify right side
    990,018.92x = 678,590,685,447.91
  5. Step 5: Solve for x
    x = 678,590,685,447.91/990,018.92
  6. Step 6: Final answer
    x = 685,432.04

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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.