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Finding the Fourth Proportional to 548,545.82, 757,154.16 and 319,157.06

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Solution

The fourth proportional to 548,545.82, 757,154.16 and 319,157.06 is: 440,530.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,545.82 : 757,154.16 = 319,157.06 : x
  2. Step 2: Convert to fraction form
    548,545.82/757,154.16 = 319,157.06/x
  3. Step 3: Cross multiply
    548,545.82x = 757,154.16 × 319,157.06
  4. Step 4: Simplify right side
    548,545.82x = 241,651,095,672.37
  5. Step 5: Solve for x
    x = 241,651,095,672.37/548,545.82
  6. Step 6: Final answer
    x = 440,530.37

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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.