Home / 990,456.10-1,485,508.52-450,586.96

Finding the Fourth Proportional to 990,456.10, 1,485,508.52 and 450,586.96

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Solution

The fourth proportional to 990,456.10, 1,485,508.52 and 450,586.96 is: 675,800.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,456.10 : 1,485,508.52 = 450,586.96 : x
  2. Step 2: Convert to fraction form
    990,456.10/1,485,508.52 = 450,586.96/x
  3. Step 3: Cross multiply
    990,456.10x = 1,485,508.52 × 450,586.96
  4. Step 4: Simplify right side
    990,456.10x = 669,350,768,080.90
  5. Step 5: Solve for x
    x = 669,350,768,080.90/990,456.10
  6. Step 6: Final answer
    x = 675,800.54

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1.5x scale

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.