Home / 816,815.68-1,224,423.52-457,162.16

Finding the Fourth Proportional to 816,815.68, 1,224,423.52 and 457,162.16

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Solution

The fourth proportional to 816,815.68, 1,224,423.52 and 457,162.16 is: 685,295.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,815.68 : 1,224,423.52 = 457,162.16 : x
  2. Step 2: Convert to fraction form
    816,815.68/1,224,423.52 = 457,162.16/x
  3. Step 3: Cross multiply
    816,815.68x = 1,224,423.52 × 457,162.16
  4. Step 4: Simplify right side
    816,815.68x = 559,760,101,158.00
  5. Step 5: Solve for x
    x = 559,760,101,158.00/816,815.68
  6. Step 6: Final answer
    x = 685,295.49

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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.