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Finding the Fourth Proportional to 623,573.45, 860,470.47 and 361,888.07

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Solution

The fourth proportional to 623,573.45, 860,470.47 and 361,888.07 is: 499,370.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,573.45 : 860,470.47 = 361,888.07 : x
  2. Step 2: Convert to fraction form
    623,573.45/860,470.47 = 361,888.07/x
  3. Step 3: Cross multiply
    623,573.45x = 860,470.47 × 361,888.07
  4. Step 4: Simplify right side
    623,573.45x = 311,393,993,377.94
  5. Step 5: Solve for x
    x = 311,393,993,377.94/623,573.45
  6. Step 6: Final answer
    x = 499,370.20

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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.