Home / 845,011.38-1,166,115.70-487,315.38

Finding the Fourth Proportional to 845,011.38, 1,166,115.70 and 487,315.38

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Solution

The fourth proportional to 845,011.38, 1,166,115.70 and 487,315.38 is: 672,495.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,011.38 : 1,166,115.70 = 487,315.38 : x
  2. Step 2: Convert to fraction form
    845,011.38/1,166,115.70 = 487,315.38/x
  3. Step 3: Cross multiply
    845,011.38x = 1,166,115.70 × 487,315.38
  4. Step 4: Simplify right side
    845,011.38x = 568,266,115,469.47
  5. Step 5: Solve for x
    x = 568,266,115,469.47/845,011.38
  6. Step 6: Final answer
    x = 672,495.22

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Double scale
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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.