Home / 1,400,743.70-2,101,115.55-1,390,246.10

Finding the Fourth Proportional to 1,400,743.70, 2,101,115.55 and 1,390,246.10

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Solution

The fourth proportional to 1,400,743.70, 2,101,115.55 and 1,390,246.10 is: 2,085,369.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400,743.70 : 2,101,115.55 = 1,390,246.10 : x
  2. Step 2: Convert to fraction form
    1,400,743.70/2,101,115.55 = 1,390,246.10/x
  3. Step 3: Cross multiply
    1,400,743.70x = 2,101,115.55 × 1,390,246.10
  4. Step 4: Simplify right side
    1,400,743.70x = 2,921,067,699,036.86
  5. Step 5: Solve for x
    x = 2,921,067,699,036.86/1,400,743.70
  6. Step 6: Final answer
    x = 2,085,369.15

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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.