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Finding the Fourth Proportional to 505,424.87, 754,860.42 and 457,945.10

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Solution

The fourth proportional to 505,424.87, 754,860.42 and 457,945.10 is: 683,948.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,424.87 : 754,860.42 = 457,945.10 : x
  2. Step 2: Convert to fraction form
    505,424.87/754,860.42 = 457,945.10/x
  3. Step 3: Cross multiply
    505,424.87x = 754,860.42 × 457,945.10
  4. Step 4: Simplify right side
    505,424.87x = 345,684,628,465.93
  5. Step 5: Solve for x
    x = 345,684,628,465.93/505,424.87
  6. Step 6: Final answer
    x = 683,948.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.