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Finding the Fourth Proportional to 548,330.65, 822,495.98 and 388,898.35

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Solution

The fourth proportional to 548,330.65, 822,495.98 and 388,898.35 is: 583,347.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,330.65 : 822,495.98 = 388,898.35 : x
  2. Step 2: Convert to fraction form
    548,330.65/822,495.98 = 388,898.35/x
  3. Step 3: Cross multiply
    548,330.65x = 822,495.98 × 388,898.35
  4. Step 4: Simplify right side
    548,330.65x = 319,867,327,559.14
  5. Step 5: Solve for x
    x = 319,867,327,559.14/548,330.65
  6. Step 6: Final answer
    x = 583,347.53

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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.