Home / 757,054.70-1,044,471.67-485,272.45

Finding the Fourth Proportional to 757,054.70, 1,044,471.67 and 485,272.45

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Solution

The fourth proportional to 757,054.70, 1,044,471.67 and 485,272.45 is: 669,506.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,054.70 : 1,044,471.67 = 485,272.45 : x
  2. Step 2: Convert to fraction form
    757,054.70/1,044,471.67 = 485,272.45/x
  3. Step 3: Cross multiply
    757,054.70x = 1,044,471.67 × 485,272.45
  4. Step 4: Simplify right side
    757,054.70x = 506,853,326,256.49
  5. Step 5: Solve for x
    x = 506,853,326,256.49/757,054.70
  6. Step 6: Final answer
    x = 669,506.87

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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.