Home / 1,605,870.75-2,216,101.65-890,478.75

Finding the Fourth Proportional to 1,605,870.75, 2,216,101.65 and 890,478.75

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Solution

The fourth proportional to 1,605,870.75, 2,216,101.65 and 890,478.75 is: 1,228,860.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,605,870.75 : 2,216,101.65 = 890,478.75 : x
  2. Step 2: Convert to fraction form
    1,605,870.75/2,216,101.65 = 890,478.75/x
  3. Step 3: Cross multiply
    1,605,870.75x = 2,216,101.65 × 890,478.75
  4. Step 4: Simplify right side
    1,605,870.75x = 1,973,391,427,164.94
  5. Step 5: Solve for x
    x = 1,973,391,427,164.94/1,605,870.75
  6. Step 6: Final answer
    x = 1,228,860.68

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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.