Home / 1,087,009.60-1,629,931.20-455,209.60

Finding the Fourth Proportional to 1,087,009.60, 1,629,931.20 and 455,209.60

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Solution

The fourth proportional to 1,087,009.60, 1,629,931.20 and 455,209.60 is: 682,570.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,009.60 : 1,629,931.20 = 455,209.60 : x
  2. Step 2: Convert to fraction form
    1,087,009.60/1,629,931.20 = 455,209.60/x
  3. Step 3: Cross multiply
    1,087,009.60x = 1,629,931.20 × 455,209.60
  4. Step 4: Simplify right side
    1,087,009.60x = 741,960,329,579.52
  5. Step 5: Solve for x
    x = 741,960,329,579.52/1,087,009.60
  6. Step 6: Final answer
    x = 682,570.17

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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.