Home / 683,298.40-1,025,239.20-328,129.60

Finding the Fourth Proportional to 683,298.40, 1,025,239.20 and 328,129.60

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Solution

The fourth proportional to 683,298.40, 1,025,239.20 and 328,129.60 is: 492,334.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,298.40 : 1,025,239.20 = 328,129.60 : x
  2. Step 2: Convert to fraction form
    683,298.40/1,025,239.20 = 328,129.60/x
  3. Step 3: Cross multiply
    683,298.40x = 1,025,239.20 × 328,129.60
  4. Step 4: Simplify right side
    683,298.40x = 336,411,328,600.32
  5. Step 5: Solve for x
    x = 336,411,328,600.32/683,298.40
  6. Step 6: Final answer
    x = 492,334.43

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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.