Home / 820,133.11-1,131,784.40-457,557.02

Finding the Fourth Proportional to 820,133.11, 1,131,784.40 and 457,557.02

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Solution

The fourth proportional to 820,133.11, 1,131,784.40 and 457,557.02 is: 631,429.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,133.11 : 1,131,784.40 = 457,557.02 : x
  2. Step 2: Convert to fraction form
    820,133.11/1,131,784.40 = 457,557.02/x
  3. Step 3: Cross multiply
    820,133.11x = 1,131,784.40 × 457,557.02
  4. Step 4: Simplify right side
    820,133.11x = 517,855,895,058.70
  5. Step 5: Solve for x
    x = 517,855,895,058.70/820,133.11
  6. Step 6: Final answer
    x = 631,429.08

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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.