Home / 686,592.40-1,030,180.20-331,423.60

Finding the Fourth Proportional to 686,592.40, 1,030,180.20 and 331,423.60

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Solution

The fourth proportional to 686,592.40, 1,030,180.20 and 331,423.60 is: 497,276.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,592.40 : 1,030,180.20 = 331,423.60 : x
  2. Step 2: Convert to fraction form
    686,592.40/1,030,180.20 = 331,423.60/x
  3. Step 3: Cross multiply
    686,592.40x = 1,030,180.20 × 331,423.60
  4. Step 4: Simplify right side
    686,592.40x = 341,426,030,532.72
  5. Step 5: Solve for x
    x = 341,426,030,532.72/686,592.40
  6. Step 6: Final answer
    x = 497,276.16

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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.