Home / 685,828.73-946,771.84-456,767.21

Finding the Fourth Proportional to 685,828.73, 946,771.84 and 456,767.21

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Solution

The fourth proportional to 685,828.73, 946,771.84 and 456,767.21 is: 630,557.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,828.73 : 946,771.84 = 456,767.21 : x
  2. Step 2: Convert to fraction form
    685,828.73/946,771.84 = 456,767.21/x
  3. Step 3: Cross multiply
    685,828.73x = 946,771.84 × 456,767.21
  4. Step 4: Simplify right side
    685,828.73x = 432,454,334,801.26
  5. Step 5: Solve for x
    x = 432,454,334,801.26/685,828.73
  6. Step 6: Final answer
    x = 630,557.33

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1.5x scale

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.