Home / 1,390,176-1,920,017.52-936,679.68

Finding the Fourth Proportional to 1,390,176, 1,920,017.52 and 936,679.68

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Solution

The fourth proportional to 1,390,176, 1,920,017.52 and 936,679.68 is: 1,293,678.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,176 : 1,920,017.52 = 936,679.68 : x
  2. Step 2: Convert to fraction form
    1,390,176/1,920,017.52 = 936,679.68/x
  3. Step 3: Cross multiply
    1,390,176x = 1,920,017.52 × 936,679.68
  4. Step 4: Simplify right side
    1,390,176x = 1,798,441,396,227.99
  5. Step 5: Solve for x
    x = 1,798,441,396,227.99/1,390,176
  6. Step 6: Final answer
    x = 1,293,678.93

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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.