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Finding the Third Proportional to 553,055.63 and 841,128.75

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Solution

The third proportional to 553,055.63 and 841,128.75 is: 1,279,252.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,055.63 : 841,128.75 = 841,128.75 : x
  2. Step 2: Convert to fraction form
    553,055.63/841,128.75 = 841,128.75/x
  3. Step 3: Cross multiply
    553,055.63x = 841,128.75 × 841,128.75
  4. Step 4: Simplify right side
    553,055.63x = 707,497,574,076.56
  5. Step 5: Solve for x
    x = 707,497,574,076.56/553,055.63
  6. Step 6: Final answer
    x = 1,279,252.11

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.