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Finding the Fourth Proportional to 470,130.88, 648,620.40 and 300,462.88

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Solution

The fourth proportional to 470,130.88, 648,620.40 and 300,462.88 is: 414,536.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,130.88 : 648,620.40 = 300,462.88 : x
  2. Step 2: Convert to fraction form
    470,130.88/648,620.40 = 300,462.88/x
  3. Step 3: Cross multiply
    470,130.88x = 648,620.40 × 300,462.88
  4. Step 4: Simplify right side
    470,130.88x = 194,886,353,410.75
  5. Step 5: Solve for x
    x = 194,886,353,410.75/470,130.88
  6. Step 6: Final answer
    x = 414,536.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.