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Finding the Fourth Proportional to 505,337.42, 697,482.62 and 290,601.36

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Solution

The fourth proportional to 505,337.42, 697,482.62 and 290,601.36 is: 401,097.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,337.42 : 697,482.62 = 290,601.36 : x
  2. Step 2: Convert to fraction form
    505,337.42/697,482.62 = 290,601.36/x
  3. Step 3: Cross multiply
    505,337.42x = 697,482.62 × 290,601.36
  4. Step 4: Simplify right side
    505,337.42x = 202,689,396,495.36
  5. Step 5: Solve for x
    x = 202,689,396,495.36/505,337.42
  6. Step 6: Final answer
    x = 401,097.15

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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.