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Finding the Fourth Proportional to 689,310.23, 950,193.86 and 484,803.86

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Solution

The fourth proportional to 689,310.23, 950,193.86 and 484,803.86 is: 668,287.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,310.23 : 950,193.86 = 484,803.86 : x
  2. Step 2: Convert to fraction form
    689,310.23/950,193.86 = 484,803.86/x
  3. Step 3: Cross multiply
    689,310.23x = 950,193.86 × 484,803.86
  4. Step 4: Simplify right side
    689,310.23x = 460,657,643,901.31
  5. Step 5: Solve for x
    x = 460,657,643,901.31/689,310.23
  6. Step 6: Final answer
    x = 668,287.84

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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.