Home / 1,381,434.40-2,072,431.85-434,584.90

Finding the Fourth Proportional to 1,381,434.40, 2,072,431.85 and 434,584.90

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Solution

The fourth proportional to 1,381,434.40, 2,072,431.85 and 434,584.90 is: 651,965.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,434.40 : 2,072,431.85 = 434,584.90 : x
  2. Step 2: Convert to fraction form
    1,381,434.40/2,072,431.85 = 434,584.90/x
  3. Step 3: Cross multiply
    1,381,434.40x = 2,072,431.85 × 434,584.90
  4. Step 4: Simplify right side
    1,381,434.40x = 900,647,588,289.07
  5. Step 5: Solve for x
    x = 900,647,588,289.07/1,381,434.40
  6. Step 6: Final answer
    x = 651,965.51

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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.