Home / 1,327,429.76-1,991,140.86-330,157.76

Finding the Fourth Proportional to 1,327,429.76, 1,991,140.86 and 330,157.76

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Solution

The fourth proportional to 1,327,429.76, 1,991,140.86 and 330,157.76 is: 495,235.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,429.76 : 1,991,140.86 = 330,157.76 : x
  2. Step 2: Convert to fraction form
    1,327,429.76/1,991,140.86 = 330,157.76/x
  3. Step 3: Cross multiply
    1,327,429.76x = 1,991,140.86 × 330,157.76
  4. Step 4: Simplify right side
    1,327,429.76x = 657,390,606,182.07
  5. Step 5: Solve for x
    x = 657,390,606,182.07/1,327,429.76
  6. Step 6: Final answer
    x = 495,235.70

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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.