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Finding the Fourth Proportional to 565,091.64, 779,826.75 and 310,459.23

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Solution

The fourth proportional to 565,091.64, 779,826.75 and 310,459.23 is: 428,433.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,091.64 : 779,826.75 = 310,459.23 : x
  2. Step 2: Convert to fraction form
    565,091.64/779,826.75 = 310,459.23/x
  3. Step 3: Cross multiply
    565,091.64x = 779,826.75 × 310,459.23
  4. Step 4: Simplify right side
    565,091.64x = 242,104,412,338.40
  5. Step 5: Solve for x
    x = 242,104,412,338.40/565,091.64
  6. Step 6: Final answer
    x = 428,433.89

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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.