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Finding the Fourth Proportional to 550,343.70, 825,515.55 and 475,548.30

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Solution

The fourth proportional to 550,343.70, 825,515.55 and 475,548.30 is: 713,322.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,343.70 : 825,515.55 = 475,548.30 : x
  2. Step 2: Convert to fraction form
    550,343.70/825,515.55 = 475,548.30/x
  3. Step 3: Cross multiply
    550,343.70x = 825,515.55 × 475,548.30
  4. Step 4: Simplify right side
    550,343.70x = 392,572,516,426.07
  5. Step 5: Solve for x
    x = 392,572,516,426.07/550,343.70
  6. Step 6: Final answer
    x = 713,322.45

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.