Home / 825,342.56-1,139,038.78-457,855.97

Finding the Fourth Proportional to 825,342.56, 1,139,038.78 and 457,855.97

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Solution

The fourth proportional to 825,342.56, 1,139,038.78 and 457,855.97 is: 631,877.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,342.56 : 1,139,038.78 = 457,855.97 : x
  2. Step 2: Convert to fraction form
    825,342.56/1,139,038.78 = 457,855.97/x
  3. Step 3: Cross multiply
    825,342.56x = 1,139,038.78 × 457,855.97
  4. Step 4: Simplify right side
    825,342.56x = 521,515,702,545.77
  5. Step 5: Solve for x
    x = 521,515,702,545.77/825,342.56
  6. Step 6: Final answer
    x = 631,877.87

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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.