Home / 789,627.43-1,089,656.98-450,030.07

Finding the Fourth Proportional to 789,627.43, 1,089,656.98 and 450,030.07

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Solution

The fourth proportional to 789,627.43, 1,089,656.98 and 450,030.07 is: 621,025.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,627.43 : 1,089,656.98 = 450,030.07 : x
  2. Step 2: Convert to fraction form
    789,627.43/1,089,656.98 = 450,030.07/x
  3. Step 3: Cross multiply
    789,627.43x = 1,089,656.98 × 450,030.07
  4. Step 4: Simplify right side
    789,627.43x = 490,378,406,985.39
  5. Step 5: Solve for x
    x = 490,378,406,985.39/789,627.43
  6. Step 6: Final answer
    x = 621,025.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.