Home / 763,738.88-1,146,609.47-512,145.18

Finding the Fourth Proportional to 763,738.88, 1,146,609.47 and 512,145.18

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Solution

The fourth proportional to 763,738.88, 1,146,609.47 and 512,145.18 is: 768,889.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,738.88 : 1,146,609.47 = 512,145.18 : x
  2. Step 2: Convert to fraction form
    763,738.88/1,146,609.47 = 512,145.18/x
  3. Step 3: Cross multiply
    763,738.88x = 1,146,609.47 × 512,145.18
  4. Step 4: Simplify right side
    763,738.88x = 587,230,514,683.22
  5. Step 5: Solve for x
    x = 587,230,514,683.22/763,738.88
  6. Step 6: Final answer
    x = 768,889.12

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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.