Home / 1,392,005.30-2,085,383.55-715,784.90

Finding the Fourth Proportional to 1,392,005.30, 2,085,383.55 and 715,784.90

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Solution

The fourth proportional to 1,392,005.30, 2,085,383.55 and 715,784.90 is: 1,072,327.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,005.30 : 2,085,383.55 = 715,784.90 : x
  2. Step 2: Convert to fraction form
    1,392,005.30/2,085,383.55 = 715,784.90/x
  3. Step 3: Cross multiply
    1,392,005.30x = 2,085,383.55 × 715,784.90
  4. Step 4: Simplify right side
    1,392,005.30x = 1,492,686,055,798.40
  5. Step 5: Solve for x
    x = 1,492,686,055,798.40/1,392,005.30
  6. Step 6: Final answer
    x = 1,072,327.85

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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.