Home / 820,429.11-1,132,249.01-457,923.69

Finding the Fourth Proportional to 820,429.11, 1,132,249.01 and 457,923.69

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Solution

The fourth proportional to 820,429.11, 1,132,249.01 and 457,923.69 is: 631,966.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,429.11 : 1,132,249.01 = 457,923.69 : x
  2. Step 2: Convert to fraction form
    820,429.11/1,132,249.01 = 457,923.69/x
  3. Step 3: Cross multiply
    820,429.11x = 1,132,249.01 × 457,923.69
  4. Step 4: Simplify right side
    820,429.11x = 518,483,642,368.43
  5. Step 5: Solve for x
    x = 518,483,642,368.43/820,429.11
  6. Step 6: Final answer
    x = 631,966.41

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Double scale
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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.