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Finding the Fourth Proportional to 493,762.16, 681,118.94 and 401,980.19

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Solution

The fourth proportional to 493,762.16, 681,118.94 and 401,980.19 is: 554,510.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,762.16 : 681,118.94 = 401,980.19 : x
  2. Step 2: Convert to fraction form
    493,762.16/681,118.94 = 401,980.19/x
  3. Step 3: Cross multiply
    493,762.16x = 681,118.94 × 401,980.19
  4. Step 4: Simplify right side
    493,762.16x = 273,796,318,513.15
  5. Step 5: Solve for x
    x = 273,796,318,513.15/493,762.16
  6. Step 6: Final answer
    x = 554,510.53

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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.