Home / 1,631,918.01-2,252,057.64-1,020,428.71

Finding the Fourth Proportional to 1,631,918.01, 2,252,057.64 and 1,020,428.71

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Solution

The fourth proportional to 1,631,918.01, 2,252,057.64 and 1,020,428.71 is: 1,408,198.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,631,918.01 : 2,252,057.64 = 1,020,428.71 : x
  2. Step 2: Convert to fraction form
    1,631,918.01/2,252,057.64 = 1,020,428.71/x
  3. Step 3: Cross multiply
    1,631,918.01x = 2,252,057.64 × 1,020,428.71
  4. Step 4: Simplify right side
    1,631,918.01x = 2,298,064,272,430.84
  5. Step 5: Solve for x
    x = 2,298,064,272,430.84/1,631,918.01
  6. Step 6: Final answer
    x = 1,408,198.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.