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Finding the Fourth Proportional to 505,549.06, 697,337.32 and 384,424.80

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Solution

The fourth proportional to 505,549.06, 697,337.32 and 384,424.80 is: 530,262.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,549.06 : 697,337.32 = 384,424.80 : x
  2. Step 2: Convert to fraction form
    505,549.06/697,337.32 = 384,424.80/x
  3. Step 3: Cross multiply
    505,549.06x = 697,337.32 × 384,424.80
  4. Step 4: Simplify right side
    505,549.06x = 268,073,759,773.54
  5. Step 5: Solve for x
    x = 268,073,759,773.54/505,549.06
  6. Step 6: Final answer
    x = 530,262.60

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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.