Home / 538,939.50-808,406.01-139,579.26

Finding the Fourth Proportional to 538,939.50, 808,406.01 and 139,579.26

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Solution

The fourth proportional to 538,939.50, 808,406.01 and 139,579.26 is: 209,368.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,939.50 : 808,406.01 = 139,579.26 : x
  2. Step 2: Convert to fraction form
    538,939.50/808,406.01 = 139,579.26/x
  3. Step 3: Cross multiply
    538,939.50x = 808,406.01 × 139,579.26
  4. Step 4: Simplify right side
    538,939.50x = 112,836,712,655.35
  5. Step 5: Solve for x
    x = 112,836,712,655.35/538,939.50
  6. Step 6: Final answer
    x = 209,368.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.