Home / 683,312.70-1,025,406.45-399,002.70

Finding the Fourth Proportional to 683,312.70, 1,025,406.45 and 399,002.70

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Solution

The fourth proportional to 683,312.70, 1,025,406.45 and 399,002.70 is: 598,759.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,312.70 : 1,025,406.45 = 399,002.70 : x
  2. Step 2: Convert to fraction form
    683,312.70/1,025,406.45 = 399,002.70/x
  3. Step 3: Cross multiply
    683,312.70x = 1,025,406.45 × 399,002.70
  4. Step 4: Simplify right side
    683,312.70x = 409,139,942,147.42
  5. Step 5: Solve for x
    x = 409,139,942,147.42/683,312.70
  6. Step 6: Final answer
    x = 598,759.46

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1.5x scale

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.