Home / 1,288,673.64-1,932,860.34-342,117.90

Finding the Fourth Proportional to 1,288,673.64, 1,932,860.34 and 342,117.90

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Solution

The fourth proportional to 1,288,673.64, 1,932,860.34 and 342,117.90 is: 513,137.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,673.64 : 1,932,860.34 = 342,117.90 : x
  2. Step 2: Convert to fraction form
    1,288,673.64/1,932,860.34 = 342,117.90/x
  3. Step 3: Cross multiply
    1,288,673.64x = 1,932,860.34 × 342,117.90
  4. Step 4: Simplify right side
    1,288,673.64x = 661,266,120,514.09
  5. Step 5: Solve for x
    x = 661,266,120,514.09/1,288,673.64
  6. Step 6: Final answer
    x = 513,137.00

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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.