Home / 686,808.40-1,030,212.60-350,885.20

Finding the Fourth Proportional to 686,808.40, 1,030,212.60 and 350,885.20

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Solution

The fourth proportional to 686,808.40, 1,030,212.60 and 350,885.20 is: 526,327.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,808.40 : 1,030,212.60 = 350,885.20 : x
  2. Step 2: Convert to fraction form
    686,808.40/1,030,212.60 = 350,885.20/x
  3. Step 3: Cross multiply
    686,808.40x = 1,030,212.60 × 350,885.20
  4. Step 4: Simplify right side
    686,808.40x = 361,486,354,193.52
  5. Step 5: Solve for x
    x = 361,486,354,193.52/686,808.40
  6. Step 6: Final answer
    x = 526,327.80

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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.