Home / 757,939.60-1,045,951.56-418,407.76

Finding the Fourth Proportional to 757,939.60, 1,045,951.56 and 418,407.76

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Solution

The fourth proportional to 757,939.60, 1,045,951.56 and 418,407.76 is: 577,399.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,939.60 : 1,045,951.56 = 418,407.76 : x
  2. Step 2: Convert to fraction form
    757,939.60/1,045,951.56 = 418,407.76/x
  3. Step 3: Cross multiply
    757,939.60x = 1,045,951.56 × 418,407.76
  4. Step 4: Simplify right side
    757,939.60x = 437,634,249,288.11
  5. Step 5: Solve for x
    x = 437,634,249,288.11/757,939.60
  6. Step 6: Final answer
    x = 577,399.90

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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.