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Finding the Fourth Proportional to 543,019.70, 749,367.29 and 301,303.98

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Solution

The fourth proportional to 543,019.70, 749,367.29 and 301,303.98 is: 415,799.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,019.70 : 749,367.29 = 301,303.98 : x
  2. Step 2: Convert to fraction form
    543,019.70/749,367.29 = 301,303.98/x
  3. Step 3: Cross multiply
    543,019.70x = 749,367.29 × 301,303.98
  4. Step 4: Simplify right side
    543,019.70x = 225,787,347,712.07
  5. Step 5: Solve for x
    x = 225,787,347,712.07/543,019.70
  6. Step 6: Final answer
    x = 415,799.55

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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.