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Finding the Fourth Proportional to 633,090.60, 873,687.02 and 346,612.64

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Solution

The fourth proportional to 633,090.60, 873,687.02 and 346,612.64 is: 478,337.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,090.60 : 873,687.02 = 346,612.64 : x
  2. Step 2: Convert to fraction form
    633,090.60/873,687.02 = 346,612.64/x
  3. Step 3: Cross multiply
    633,090.60x = 873,687.02 × 346,612.64
  4. Step 4: Simplify right side
    633,090.60x = 302,830,958,434.44
  5. Step 5: Solve for x
    x = 302,830,958,434.44/633,090.60
  6. Step 6: Final answer
    x = 478,337.47

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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.