Home / 1,331,505.20-1,997,272.40-384,884.12

Finding the Fourth Proportional to 1,331,505.20, 1,997,272.40 and 384,884.12

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Solution

The fourth proportional to 1,331,505.20, 1,997,272.40 and 384,884.12 is: 577,330.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,505.20 : 1,997,272.40 = 384,884.12 : x
  2. Step 2: Convert to fraction form
    1,331,505.20/1,997,272.40 = 384,884.12/x
  3. Step 3: Cross multiply
    1,331,505.20x = 1,997,272.40 × 384,884.12
  4. Step 4: Simplify right side
    1,331,505.20x = 768,718,430,074.29
  5. Step 5: Solve for x
    x = 768,718,430,074.29/1,331,505.20
  6. Step 6: Final answer
    x = 577,330.40

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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.