Home / 1,128,122.10-1,692,001.58-329,216.40

Finding the Fourth Proportional to 1,128,122.10, 1,692,001.58 and 329,216.40

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Solution

The fourth proportional to 1,128,122.10, 1,692,001.58 and 329,216.40 is: 493,771.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,122.10 : 1,692,001.58 = 329,216.40 : x
  2. Step 2: Convert to fraction form
    1,128,122.10/1,692,001.58 = 329,216.40/x
  3. Step 3: Cross multiply
    1,128,122.10x = 1,692,001.58 × 329,216.40
  4. Step 4: Simplify right side
    1,128,122.10x = 557,034,667,315.83
  5. Step 5: Solve for x
    x = 557,034,667,315.83/1,128,122.10
  6. Step 6: Final answer
    x = 493,771.61

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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.