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Finding the Fourth Proportional to 531,628.08, 733,646.94 and 289,904.46

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Solution

The fourth proportional to 531,628.08, 733,646.94 and 289,904.46 is: 400,068.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,628.08 : 733,646.94 = 289,904.46 : x
  2. Step 2: Convert to fraction form
    531,628.08/733,646.94 = 289,904.46/x
  3. Step 3: Cross multiply
    531,628.08x = 733,646.94 × 289,904.46
  4. Step 4: Simplify right side
    531,628.08x = 212,687,519,971.35
  5. Step 5: Solve for x
    x = 212,687,519,971.35/531,628.08
  6. Step 6: Final answer
    x = 400,068.26

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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.