Home / 913,216.69-1,368,514.51-513,015.13

Finding the Fourth Proportional to 913,216.69, 1,368,514.51 and 513,015.13

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Solution

The fourth proportional to 913,216.69, 1,368,514.51 and 513,015.13 is: 768,786.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,216.69 : 1,368,514.51 = 513,015.13 : x
  2. Step 2: Convert to fraction form
    913,216.69/1,368,514.51 = 513,015.13/x
  3. Step 3: Cross multiply
    913,216.69x = 1,368,514.51 × 513,015.13
  4. Step 4: Simplify right side
    913,216.69x = 702,068,649,682.64
  5. Step 5: Solve for x
    x = 702,068,649,682.64/913,216.69
  6. Step 6: Final answer
    x = 768,786.48

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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.