Home / 1,427,465.70-1,969,898.69-815,808.27

Finding the Fourth Proportional to 1,427,465.70, 1,969,898.69 and 815,808.27

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Solution

The fourth proportional to 1,427,465.70, 1,969,898.69 and 815,808.27 is: 1,125,813.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,465.70 : 1,969,898.69 = 815,808.27 : x
  2. Step 2: Convert to fraction form
    1,427,465.70/1,969,898.69 = 815,808.27/x
  3. Step 3: Cross multiply
    1,427,465.70x = 1,969,898.69 × 815,808.27
  4. Step 4: Simplify right side
    1,427,465.70x = 1,607,059,638,285.13
  5. Step 5: Solve for x
    x = 1,607,059,638,285.13/1,427,465.70
  6. Step 6: Final answer
    x = 1,125,813.14

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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.