Home / 757,678.78-1,045,591.89-418,147.06

Finding the Fourth Proportional to 757,678.78, 1,045,591.89 and 418,147.06

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Solution

The fourth proportional to 757,678.78, 1,045,591.89 and 418,147.06 is: 577,040.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,678.78 : 1,045,591.89 = 418,147.06 : x
  2. Step 2: Convert to fraction form
    757,678.78/1,045,591.89 = 418,147.06/x
  3. Step 3: Cross multiply
    757,678.78x = 1,045,591.89 × 418,147.06
  4. Step 4: Simplify right side
    757,678.78x = 437,211,174,763.34
  5. Step 5: Solve for x
    x = 437,211,174,763.34/757,678.78
  6. Step 6: Final answer
    x = 577,040.28

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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.