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Finding the Fourth Proportional to 531,320.55, 733,229.75 and 289,602.68

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Solution

The fourth proportional to 531,320.55, 733,229.75 and 289,602.68 is: 399,655.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,320.55 : 733,229.75 = 289,602.68 : x
  2. Step 2: Convert to fraction form
    531,320.55/733,229.75 = 289,602.68/x
  3. Step 3: Cross multiply
    531,320.55x = 733,229.75 × 289,602.68
  4. Step 4: Simplify right side
    531,320.55x = 212,345,295,541.57
  5. Step 5: Solve for x
    x = 212,345,295,541.57/531,320.55
  6. Step 6: Final answer
    x = 399,655.72

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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.