Home / 1,310,731.01-1,966,166.57-412,242.80

Finding the Fourth Proportional to 1,310,731.01, 1,966,166.57 and 412,242.80

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Solution

The fourth proportional to 1,310,731.01, 1,966,166.57 and 412,242.80 is: 618,386.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,731.01 : 1,966,166.57 = 412,242.80 : x
  2. Step 2: Convert to fraction form
    1,310,731.01/1,966,166.57 = 412,242.80/x
  3. Step 3: Cross multiply
    1,310,731.01x = 1,966,166.57 × 412,242.80
  4. Step 4: Simplify right side
    1,310,731.01x = 810,538,018,029.22
  5. Step 5: Solve for x
    x = 810,538,018,029.22/1,310,731.01
  6. Step 6: Final answer
    x = 618,386.24

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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.