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Finding the Fourth Proportional to 660,105.51, 910,652.52 and 430,609.96

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Solution

The fourth proportional to 660,105.51, 910,652.52 and 430,609.96 is: 594,050.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,105.51 : 910,652.52 = 430,609.96 : x
  2. Step 2: Convert to fraction form
    660,105.51/910,652.52 = 430,609.96/x
  3. Step 3: Cross multiply
    660,105.51x = 910,652.52 × 430,609.96
  4. Step 4: Simplify right side
    660,105.51x = 392,136,045,211.10
  5. Step 5: Solve for x
    x = 392,136,045,211.10/660,105.51
  6. Step 6: Final answer
    x = 594,050.56

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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.