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Finding the Fourth Proportional to 531,094.34, 732,900.93 and 289,378.91

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Solution

The fourth proportional to 531,094.34, 732,900.93 and 289,378.91 is: 399,337.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,094.34 : 732,900.93 = 289,378.91 : x
  2. Step 2: Convert to fraction form
    531,094.34/732,900.93 = 289,378.91/x
  3. Step 3: Cross multiply
    531,094.34x = 732,900.93 × 289,378.91
  4. Step 4: Simplify right side
    531,094.34x = 212,086,068,596.88
  5. Step 5: Solve for x
    x = 212,086,068,596.88/531,094.34
  6. Step 6: Final answer
    x = 399,337.85

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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.