Home / 857,285.20-1,183,126-475,435

Finding the Fourth Proportional to 857,285.20, 1,183,126 and 475,435

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Solution

The fourth proportional to 857,285.20, 1,183,126 and 475,435 is: 656,140.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,285.20 : 1,183,126 = 475,435 : x
  2. Step 2: Convert to fraction form
    857,285.20/1,183,126 = 475,435/x
  3. Step 3: Cross multiply
    857,285.20x = 1,183,126 × 475,435
  4. Step 4: Simplify right side
    857,285.20x = 562,499,509,810
  5. Step 5: Solve for x
    x = 562,499,509,810/857,285.20
  6. Step 6: Final answer
    x = 656,140.47

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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.