Home / 856,279.11-1,284,840.70-400,901.13

Finding the Fourth Proportional to 856,279.11, 1,284,840.70 and 400,901.13

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Solution

The fourth proportional to 856,279.11, 1,284,840.70 and 400,901.13 is: 601,549.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,279.11 : 1,284,840.70 = 400,901.13 : x
  2. Step 2: Convert to fraction form
    856,279.11/1,284,840.70 = 400,901.13/x
  3. Step 3: Cross multiply
    856,279.11x = 1,284,840.70 × 400,901.13
  4. Step 4: Simplify right side
    856,279.11x = 515,094,087,497.74
  5. Step 5: Solve for x
    x = 515,094,087,497.74/856,279.11
  6. Step 6: Final answer
    x = 601,549.28

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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.