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Finding the Fourth Proportional to 531,215.58, 733,056.12 and 289,492.97

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Solution

The fourth proportional to 531,215.58, 733,056.12 and 289,492.97 is: 399,488.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,215.58 : 733,056.12 = 289,492.97 : x
  2. Step 2: Convert to fraction form
    531,215.58/733,056.12 = 289,492.97/x
  3. Step 3: Cross multiply
    531,215.58x = 733,056.12 × 289,492.97
  4. Step 4: Simplify right side
    531,215.58x = 212,214,588,242.73
  5. Step 5: Solve for x
    x = 212,214,588,242.73/531,215.58
  6. Step 6: Final answer
    x = 399,488.64

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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.