Home / 757,857.18-1,045,842.75-418,325.34

Finding the Fourth Proportional to 757,857.18, 1,045,842.75 and 418,325.34

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Solution

The fourth proportional to 757,857.18, 1,045,842.75 and 418,325.34 is: 577,288.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,857.18 : 1,045,842.75 = 418,325.34 : x
  2. Step 2: Convert to fraction form
    757,857.18/1,045,842.75 = 418,325.34/x
  3. Step 3: Cross multiply
    757,857.18x = 1,045,842.75 × 418,325.34
  4. Step 4: Simplify right side
    757,857.18x = 437,502,523,980.29
  5. Step 5: Solve for x
    x = 437,502,523,980.29/757,857.18
  6. Step 6: Final answer
    x = 577,288.88

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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.