Home / 820,132.73-1,131,783.88-457,556.65

Finding the Fourth Proportional to 820,132.73, 1,131,783.88 and 457,556.65

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Solution

The fourth proportional to 820,132.73, 1,131,783.88 and 457,556.65 is: 631,428.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,132.73 : 1,131,783.88 = 457,556.65 : x
  2. Step 2: Convert to fraction form
    820,132.73/1,131,783.88 = 457,556.65/x
  3. Step 3: Cross multiply
    820,132.73x = 1,131,783.88 × 457,556.65
  4. Step 4: Simplify right side
    820,132.73x = 517,855,236,111.51
  5. Step 5: Solve for x
    x = 517,855,236,111.51/820,132.73
  6. Step 6: Final answer
    x = 631,428.57

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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.