Home / 757,931.52-1,045,945.68-418,400

Finding the Fourth Proportional to 757,931.52, 1,045,945.68 and 418,400

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Solution

The fourth proportional to 757,931.52, 1,045,945.68 and 418,400 is: 577,392.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,931.52 : 1,045,945.68 = 418,400 : x
  2. Step 2: Convert to fraction form
    757,931.52/1,045,945.68 = 418,400/x
  3. Step 3: Cross multiply
    757,931.52x = 1,045,945.68 × 418,400
  4. Step 4: Simplify right side
    757,931.52x = 437,623,672,512
  5. Step 5: Solve for x
    x = 437,623,672,512/757,931.52
  6. Step 6: Final answer
    x = 577,392.10

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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.