Home / 686,999.55-1,030,499.33-613,516.35

Finding the Fourth Proportional to 686,999.55, 1,030,499.33 and 613,516.35

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Solution

The fourth proportional to 686,999.55, 1,030,499.33 and 613,516.35 is: 920,274.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,999.55 : 1,030,499.33 = 613,516.35 : x
  2. Step 2: Convert to fraction form
    686,999.55/1,030,499.33 = 613,516.35/x
  3. Step 3: Cross multiply
    686,999.55x = 1,030,499.33 × 613,516.35
  4. Step 4: Simplify right side
    686,999.55x = 632,228,184,551.46
  5. Step 5: Solve for x
    x = 632,228,184,551.46/686,999.55
  6. Step 6: Final answer
    x = 920,274.53

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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.