Home / 1,821,123.90-2,513,085.11-1,005,310.07

Finding the Fourth Proportional to 1,821,123.90, 2,513,085.11 and 1,005,310.07

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Solution

The fourth proportional to 1,821,123.90, 2,513,085.11 and 1,005,310.07 is: 1,387,291.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821,123.90 : 2,513,085.11 = 1,005,310.07 : x
  2. Step 2: Convert to fraction form
    1,821,123.90/2,513,085.11 = 1,005,310.07/x
  3. Step 3: Cross multiply
    1,821,123.90x = 2,513,085.11 × 1,005,310.07
  4. Step 4: Simplify right side
    1,821,123.90x = 2,526,429,750,258.08
  5. Step 5: Solve for x
    x = 2,526,429,750,258.08/1,821,123.90
  6. Step 6: Final answer
    x = 1,387,291.52

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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.