Home / 810,709.29-1,118,759.11-448,123.79

Finding the Fourth Proportional to 810,709.29, 1,118,759.11 and 448,123.79

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Solution

The fourth proportional to 810,709.29, 1,118,759.11 and 448,123.79 is: 618,399.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,709.29 : 1,118,759.11 = 448,123.79 : x
  2. Step 2: Convert to fraction form
    810,709.29/1,118,759.11 = 448,123.79/x
  3. Step 3: Cross multiply
    810,709.29x = 1,118,759.11 × 448,123.79
  4. Step 4: Simplify right side
    810,709.29x = 501,342,574,146.82
  5. Step 5: Solve for x
    x = 501,342,574,146.82/810,709.29
  6. Step 6: Final answer
    x = 618,399.94

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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.