Home / 820,134.11-1,131,785.77-457,558.02

Finding the Fourth Proportional to 820,134.11, 1,131,785.77 and 457,558.02

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Solution

The fourth proportional to 820,134.11, 1,131,785.77 and 457,558.02 is: 631,430.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,134.11 : 1,131,785.77 = 457,558.02 : x
  2. Step 2: Convert to fraction form
    820,134.11/1,131,785.77 = 457,558.02/x
  3. Step 3: Cross multiply
    820,134.11x = 1,131,785.77 × 457,558.02
  4. Step 4: Simplify right side
    820,134.11x = 517,857,655,985.38
  5. Step 5: Solve for x
    x = 517,857,655,985.38/820,134.11
  6. Step 6: Final answer
    x = 631,430.46

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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.