Home / 1,087,128.60-1,628,724.60-929,664.60

Finding the Fourth Proportional to 1,087,128.60, 1,628,724.60 and 929,664.60

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Solution

The fourth proportional to 1,087,128.60, 1,628,724.60 and 929,664.60 is: 1,392,813.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,128.60 : 1,628,724.60 = 929,664.60 : x
  2. Step 2: Convert to fraction form
    1,087,128.60/1,628,724.60 = 929,664.60/x
  3. Step 3: Cross multiply
    1,087,128.60x = 1,628,724.60 × 929,664.60
  4. Step 4: Simplify right side
    1,087,128.60x = 1,514,167,603,769.16
  5. Step 5: Solve for x
    x = 1,514,167,603,769.16/1,087,128.60
  6. Step 6: Final answer
    x = 1,392,813.70

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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.