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Finding the Fourth Proportional to 577,815.60, 866,377.80 and 297,879.60

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Solution

The fourth proportional to 577,815.60, 866,377.80 and 297,879.60 is: 446,641.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,815.60 : 866,377.80 = 297,879.60 : x
  2. Step 2: Convert to fraction form
    577,815.60/866,377.80 = 297,879.60/x
  3. Step 3: Cross multiply
    577,815.60x = 866,377.80 × 297,879.60
  4. Step 4: Simplify right side
    577,815.60x = 258,076,272,512.88
  5. Step 5: Solve for x
    x = 258,076,272,512.88/577,815.60
  6. Step 6: Final answer
    x = 446,641.23

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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.