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Finding the Fourth Proportional to 586,520.80, 879,605.70 and 305,884.96

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Solution

The fourth proportional to 586,520.80, 879,605.70 and 305,884.96 is: 458,735.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,520.80 : 879,605.70 = 305,884.96 : x
  2. Step 2: Convert to fraction form
    586,520.80/879,605.70 = 305,884.96/x
  3. Step 3: Cross multiply
    586,520.80x = 879,605.70 × 305,884.96
  4. Step 4: Simplify right side
    586,520.80x = 269,058,154,360.27
  5. Step 5: Solve for x
    x = 269,058,154,360.27/586,520.80
  6. Step 6: Final answer
    x = 458,735.91

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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.