Home / 1,118,188.60-1,677,282.90-978,220.60

Finding the Fourth Proportional to 1,118,188.60, 1,677,282.90 and 978,220.60

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Solution

The fourth proportional to 1,118,188.60, 1,677,282.90 and 978,220.60 is: 1,467,330.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,188.60 : 1,677,282.90 = 978,220.60 : x
  2. Step 2: Convert to fraction form
    1,118,188.60/1,677,282.90 = 978,220.60/x
  3. Step 3: Cross multiply
    1,118,188.60x = 1,677,282.90 × 978,220.60
  4. Step 4: Simplify right side
    1,118,188.60x = 1,640,752,684,807.74
  5. Step 5: Solve for x
    x = 1,640,752,684,807.74/1,118,188.60
  6. Step 6: Final answer
    x = 1,467,330.90

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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.