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Finding the Fourth Proportional to 558,381.03, 770,702.72 and 316,805.01

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Solution

The fourth proportional to 558,381.03, 770,702.72 and 316,805.01 is: 437,268.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,381.03 : 770,702.72 = 316,805.01 : x
  2. Step 2: Convert to fraction form
    558,381.03/770,702.72 = 316,805.01/x
  3. Step 3: Cross multiply
    558,381.03x = 770,702.72 × 316,805.01
  4. Step 4: Simplify right side
    558,381.03x = 244,162,481,332.60
  5. Step 5: Solve for x
    x = 244,162,481,332.60/558,381.03
  6. Step 6: Final answer
    x = 437,268.58

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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.