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Finding the Fourth Proportional to 629,766.60, 869,045.03 and 357,796.72

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Solution

The fourth proportional to 629,766.60, 869,045.03 and 357,796.72 is: 493,740.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,766.60 : 869,045.03 = 357,796.72 : x
  2. Step 2: Convert to fraction form
    629,766.60/869,045.03 = 357,796.72/x
  3. Step 3: Cross multiply
    629,766.60x = 869,045.03 × 357,796.72
  4. Step 4: Simplify right side
    629,766.60x = 310,941,461,266.30
  5. Step 5: Solve for x
    x = 310,941,461,266.30/629,766.60
  6. Step 6: Final answer
    x = 493,740.79

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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.