Home / 1,288,043.40-1,932,065.10-341,509.80

Finding the Fourth Proportional to 1,288,043.40, 1,932,065.10 and 341,509.80

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Solution

The fourth proportional to 1,288,043.40, 1,932,065.10 and 341,509.80 is: 512,264.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,043.40 : 1,932,065.10 = 341,509.80 : x
  2. Step 2: Convert to fraction form
    1,288,043.40/1,932,065.10 = 341,509.80/x
  3. Step 3: Cross multiply
    1,288,043.40x = 1,932,065.10 × 341,509.80
  4. Step 4: Simplify right side
    1,288,043.40x = 659,819,165,887.98
  5. Step 5: Solve for x
    x = 659,819,165,887.98/1,288,043.40
  6. Step 6: Final answer
    x = 512,264.70

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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.