Home / 683,510.40-1,025,376.48-257,079.60

Finding the Fourth Proportional to 683,510.40, 1,025,376.48 and 257,079.60

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Solution

The fourth proportional to 683,510.40, 1,025,376.48 and 257,079.60 is: 385,661.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,510.40 : 1,025,376.48 = 257,079.60 : x
  2. Step 2: Convert to fraction form
    683,510.40/1,025,376.48 = 257,079.60/x
  3. Step 3: Cross multiply
    683,510.40x = 1,025,376.48 × 257,079.60
  4. Step 4: Simplify right side
    683,510.40x = 263,603,375,327.81
  5. Step 5: Solve for x
    x = 263,603,375,327.81/683,510.40
  6. Step 6: Final answer
    x = 385,661.10

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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.