Home / 686,750.20-1,030,562.70-402,440.20

Finding the Fourth Proportional to 686,750.20, 1,030,562.70 and 402,440.20

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Solution

The fourth proportional to 686,750.20, 1,030,562.70 and 402,440.20 is: 603,916.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,750.20 : 1,030,562.70 = 402,440.20 : x
  2. Step 2: Convert to fraction form
    686,750.20/1,030,562.70 = 402,440.20/x
  3. Step 3: Cross multiply
    686,750.20x = 1,030,562.70 × 402,440.20
  4. Step 4: Simplify right side
    686,750.20x = 414,739,859,100.54
  5. Step 5: Solve for x
    x = 414,739,859,100.54/686,750.20
  6. Step 6: Final answer
    x = 603,916.62

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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.