Home / 1,080,623.52-1,620,935.28-415,620

Finding the Fourth Proportional to 1,080,623.52, 1,620,935.28 and 415,620

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Solution

The fourth proportional to 1,080,623.52, 1,620,935.28 and 415,620 is: 623,430

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,623.52 : 1,620,935.28 = 415,620 : x
  2. Step 2: Convert to fraction form
    1,080,623.52/1,620,935.28 = 415,620/x
  3. Step 3: Cross multiply
    1,080,623.52x = 1,620,935.28 × 415,620
  4. Step 4: Simplify right side
    1,080,623.52x = 673,693,121,073.60
  5. Step 5: Solve for x
    x = 673,693,121,073.60/1,080,623.52
  6. Step 6: Final answer
    x = 623,430

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Similar ratio
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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.