Home / 1,089,110.90-1,633,666.35-668,623.70

Finding the Fourth Proportional to 1,089,110.90, 1,633,666.35 and 668,623.70

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Solution

The fourth proportional to 1,089,110.90, 1,633,666.35 and 668,623.70 is: 1,002,935.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,110.90 : 1,633,666.35 = 668,623.70 : x
  2. Step 2: Convert to fraction form
    1,089,110.90/1,633,666.35 = 668,623.70/x
  3. Step 3: Cross multiply
    1,089,110.90x = 1,633,666.35 × 668,623.70
  4. Step 4: Simplify right side
    1,089,110.90x = 1,092,308,039,502.50
  5. Step 5: Solve for x
    x = 1,092,308,039,502.50/1,089,110.90
  6. Step 6: Final answer
    x = 1,002,935.55

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Double scale
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1.5x scale

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.