Home / 990,431.27-1,485,214.25-350,522.40

Finding the Fourth Proportional to 990,431.27, 1,485,214.25 and 350,522.40

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Solution

The fourth proportional to 990,431.27, 1,485,214.25 and 350,522.40 is: 525,630.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,431.27 : 1,485,214.25 = 350,522.40 : x
  2. Step 2: Convert to fraction form
    990,431.27/1,485,214.25 = 350,522.40/x
  3. Step 3: Cross multiply
    990,431.27x = 1,485,214.25 × 350,522.40
  4. Step 4: Simplify right side
    990,431.27x = 520,600,861,671.59
  5. Step 5: Solve for x
    x = 520,600,861,671.59/990,431.27
  6. Step 6: Final answer
    x = 525,630.48

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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.