Home / 690,877.85-1,036,627.81-374,861.21

Finding the Fourth Proportional to 690,877.85, 1,036,627.81 and 374,861.21

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Solution

The fourth proportional to 690,877.85, 1,036,627.81 and 374,861.21 is: 562,460.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,877.85 : 1,036,627.81 = 374,861.21 : x
  2. Step 2: Convert to fraction form
    690,877.85/1,036,627.81 = 374,861.21/x
  3. Step 3: Cross multiply
    690,877.85x = 1,036,627.81 × 374,861.21
  4. Step 4: Simplify right side
    690,877.85x = 388,591,549,055.96
  5. Step 5: Solve for x
    x = 388,591,549,055.96/690,877.85
  6. Step 6: Final answer
    x = 562,460.57

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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.