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Finding the Fourth Proportional to 648,126.70, 972,190.06 and 648,126.70

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Solution

The fourth proportional to 648,126.70, 972,190.06 and 648,126.70 is: 972,190.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,126.70 : 972,190.06 = 648,126.70 : x
  2. Step 2: Convert to fraction form
    648,126.70/972,190.06 = 648,126.70/x
  3. Step 3: Cross multiply
    648,126.70x = 972,190.06 × 648,126.70
  4. Step 4: Simplify right side
    648,126.70x = 630,102,335,360.60
  5. Step 5: Solve for x
    x = 630,102,335,360.60/648,126.70
  6. Step 6: Final answer
    x = 972,190.06

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Double scale
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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.