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Finding the Third Proportional to 428,565.94 and 912,627

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Solution

The third proportional to 428,565.94 and 912,627 is: 1,943,430.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,565.94 : 912,627 = 912,627 : x
  2. Step 2: Convert to fraction form
    428,565.94/912,627 = 912,627/x
  3. Step 3: Cross multiply
    428,565.94x = 912,627 × 912,627
  4. Step 4: Simplify right side
    428,565.94x = 832,888,041,129
  5. Step 5: Solve for x
    x = 832,888,041,129/428,565.94
  6. Step 6: Final answer
    x = 1,943,430.33

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.