Home / 1,605,005.25-2,215,065.69-916,780.02

Finding the Fourth Proportional to 1,605,005.25, 2,215,065.69 and 916,780.02

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Solution

The fourth proportional to 1,605,005.25, 2,215,065.69 and 916,780.02 is: 1,265,246.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,605,005.25 : 2,215,065.69 = 916,780.02 : x
  2. Step 2: Convert to fraction form
    1,605,005.25/2,215,065.69 = 916,780.02/x
  3. Step 3: Cross multiply
    1,605,005.25x = 2,215,065.69 × 916,780.02
  4. Step 4: Simplify right side
    1,605,005.25x = 2,030,727,967,579.51
  5. Step 5: Solve for x
    x = 2,030,727,967,579.51/1,605,005.25
  6. Step 6: Final answer
    x = 1,265,246.93

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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.