Home / 990,260.92-1,485,152.34-457,269.58

Finding the Fourth Proportional to 990,260.92, 1,485,152.34 and 457,269.58

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Solution

The fourth proportional to 990,260.92, 1,485,152.34 and 457,269.58 is: 685,793.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,260.92 : 1,485,152.34 = 457,269.58 : x
  2. Step 2: Convert to fraction form
    990,260.92/1,485,152.34 = 457,269.58/x
  3. Step 3: Cross multiply
    990,260.92x = 1,485,152.34 × 457,269.58
  4. Step 4: Simplify right side
    990,260.92x = 679,114,986,747.82
  5. Step 5: Solve for x
    x = 679,114,986,747.82/990,260.92
  6. Step 6: Final answer
    x = 685,793.99

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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.