Home / 648,440.20-972,077.10-423,908.20

Finding the Fourth Proportional to 648,440.20, 972,077.10 and 423,908.20

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Solution

The fourth proportional to 648,440.20, 972,077.10 and 423,908.20 is: 635,481.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,440.20 : 972,077.10 = 423,908.20 : x
  2. Step 2: Convert to fraction form
    648,440.20/972,077.10 = 423,908.20/x
  3. Step 3: Cross multiply
    648,440.20x = 972,077.10 × 423,908.20
  4. Step 4: Simplify right side
    648,440.20x = 412,071,453,722.22
  5. Step 5: Solve for x
    x = 412,071,453,722.22/648,440.20
  6. Step 6: Final answer
    x = 635,481.04

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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.