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Finding the Fourth Proportional to 553,807.70, 830,711.55 and 133,083.58

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Solution

The fourth proportional to 553,807.70, 830,711.55 and 133,083.58 is: 199,625.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,807.70 : 830,711.55 = 133,083.58 : x
  2. Step 2: Convert to fraction form
    553,807.70/830,711.55 = 133,083.58/x
  3. Step 3: Cross multiply
    553,807.70x = 830,711.55 × 133,083.58
  4. Step 4: Simplify right side
    553,807.70x = 110,554,062,867.79
  5. Step 5: Solve for x
    x = 110,554,062,867.79/553,807.70
  6. Step 6: Final answer
    x = 199,625.36

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.