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Finding the Fourth Proportional to 470,341.66, 648,453.86 and 339,409.43

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Solution

The fourth proportional to 470,341.66, 648,453.86 and 339,409.43 is: 467,939.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,341.66 : 648,453.86 = 339,409.43 : x
  2. Step 2: Convert to fraction form
    470,341.66/648,453.86 = 339,409.43/x
  3. Step 3: Cross multiply
    470,341.66x = 648,453.86 × 339,409.43
  4. Step 4: Simplify right side
    470,341.66x = 220,091,355,003.90
  5. Step 5: Solve for x
    x = 220,091,355,003.90/470,341.66
  6. Step 6: Final answer
    x = 467,939.32

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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.