Home / 1,427,488.30-1,969,924.62-815,828.14

Finding the Fourth Proportional to 1,427,488.30, 1,969,924.62 and 815,828.14

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Solution

The fourth proportional to 1,427,488.30, 1,969,924.62 and 815,828.14 is: 1,125,837.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,488.30 : 1,969,924.62 = 815,828.14 : x
  2. Step 2: Convert to fraction form
    1,427,488.30/1,969,924.62 = 815,828.14/x
  3. Step 3: Cross multiply
    1,427,488.30x = 1,969,924.62 × 815,828.14
  4. Step 4: Simplify right side
    1,427,488.30x = 1,607,119,938,674.81
  5. Step 5: Solve for x
    x = 1,607,119,938,674.81/1,427,488.30
  6. Step 6: Final answer
    x = 1,125,837.56

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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.