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Finding the Fourth Proportional to 689,188.10, 950,940.20 and 402,652.82

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Solution

The fourth proportional to 689,188.10, 950,940.20 and 402,652.82 is: 555,579.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,188.10 : 950,940.20 = 402,652.82 : x
  2. Step 2: Convert to fraction form
    689,188.10/950,940.20 = 402,652.82/x
  3. Step 3: Cross multiply
    689,188.10x = 950,940.20 × 402,652.82
  4. Step 4: Simplify right side
    689,188.10x = 382,898,756,565.35
  5. Step 5: Solve for x
    x = 382,898,756,565.35/689,188.10
  6. Step 6: Final answer
    x = 555,579.47

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1.5x scale

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.