Home / 1,311,665.35-1,967,498.02-512,386.38

Finding the Fourth Proportional to 1,311,665.35, 1,967,498.02 and 512,386.38

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Solution

The fourth proportional to 1,311,665.35, 1,967,498.02 and 512,386.38 is: 768,579.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,665.35 : 1,967,498.02 = 512,386.38 : x
  2. Step 2: Convert to fraction form
    1,311,665.35/1,967,498.02 = 512,386.38/x
  3. Step 3: Cross multiply
    1,311,665.35x = 1,967,498.02 × 512,386.38
  4. Step 4: Simplify right side
    1,311,665.35x = 1,008,119,195,740.13
  5. Step 5: Solve for x
    x = 1,008,119,195,740.13/1,311,665.35
  6. Step 6: Final answer
    x = 768,579.57

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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.