Home / 820,315.62-1,132,033.32-457,735.50

Finding the Fourth Proportional to 820,315.62, 1,132,033.32 and 457,735.50

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Solution

The fourth proportional to 820,315.62, 1,132,033.32 and 457,735.50 is: 631,673.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,315.62 : 1,132,033.32 = 457,735.50 : x
  2. Step 2: Convert to fraction form
    820,315.62/1,132,033.32 = 457,735.50/x
  3. Step 3: Cross multiply
    820,315.62x = 1,132,033.32 × 457,735.50
  4. Step 4: Simplify right side
    820,315.62x = 518,171,837,746.86
  5. Step 5: Solve for x
    x = 518,171,837,746.86/820,315.62
  6. Step 6: Final answer
    x = 631,673.74

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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.