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Finding the Fourth Proportional to 647,652.60, 971,187.30 and 292,483.80

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Solution

The fourth proportional to 647,652.60, 971,187.30 and 292,483.80 is: 438,594.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,652.60 : 971,187.30 = 292,483.80 : x
  2. Step 2: Convert to fraction form
    647,652.60/971,187.30 = 292,483.80/x
  3. Step 3: Cross multiply
    647,652.60x = 971,187.30 × 292,483.80
  4. Step 4: Simplify right side
    647,652.60x = 284,056,552,015.74
  5. Step 5: Solve for x
    x = 284,056,552,015.74/647,652.60
  6. Step 6: Final answer
    x = 438,594.01

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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.