Home / 815,785.51-1,217,690.09-755,666.24

Finding the Fourth Proportional to 815,785.51, 1,217,690.09 and 755,666.24

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Solution

The fourth proportional to 815,785.51, 1,217,690.09 and 755,666.24 is: 1,127,952.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,785.51 : 1,217,690.09 = 755,666.24 : x
  2. Step 2: Convert to fraction form
    815,785.51/1,217,690.09 = 755,666.24/x
  3. Step 3: Cross multiply
    815,785.51x = 1,217,690.09 × 755,666.24
  4. Step 4: Simplify right side
    815,785.51x = 920,167,296,158.64
  5. Step 5: Solve for x
    x = 920,167,296,158.64/815,785.51
  6. Step 6: Final answer
    x = 1,127,952.49

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.