Home / 648,120.20-972,180.30-530,022.20

Finding the Fourth Proportional to 648,120.20, 972,180.30 and 530,022.20

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Solution

The fourth proportional to 648,120.20, 972,180.30 and 530,022.20 is: 795,033.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,120.20 : 972,180.30 = 530,022.20 : x
  2. Step 2: Convert to fraction form
    648,120.20/972,180.30 = 530,022.20/x
  3. Step 3: Cross multiply
    648,120.20x = 972,180.30 × 530,022.20
  4. Step 4: Simplify right side
    648,120.20x = 515,277,141,402.66
  5. Step 5: Solve for x
    x = 515,277,141,402.66/648,120.20
  6. Step 6: Final answer
    x = 795,033.30

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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.