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Finding the Fourth Proportional to 450,309.48, 621,424.83 and 246,356.70

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Solution

The fourth proportional to 450,309.48, 621,424.83 and 246,356.70 is: 339,971.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,309.48 : 621,424.83 = 246,356.70 : x
  2. Step 2: Convert to fraction form
    450,309.48/621,424.83 = 246,356.70/x
  3. Step 3: Cross multiply
    450,309.48x = 621,424.83 × 246,356.70
  4. Step 4: Simplify right side
    450,309.48x = 153,092,170,416.86
  5. Step 5: Solve for x
    x = 153,092,170,416.86/450,309.48
  6. Step 6: Final answer
    x = 339,971.01

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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.