Home / 858,785.70-1,185,161.28-476,812.50

Finding the Fourth Proportional to 858,785.70, 1,185,161.28 and 476,812.50

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Solution

The fourth proportional to 858,785.70, 1,185,161.28 and 476,812.50 is: 658,021.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,785.70 : 1,185,161.28 = 476,812.50 : x
  2. Step 2: Convert to fraction form
    858,785.70/1,185,161.28 = 476,812.50/x
  3. Step 3: Cross multiply
    858,785.70x = 1,185,161.28 × 476,812.50
  4. Step 4: Simplify right side
    858,785.70x = 565,099,712,820
  5. Step 5: Solve for x
    x = 565,099,712,820/858,785.70
  6. Step 6: Final answer
    x = 658,021.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.