Home / 638,574.12-956,777.24-385,322.46

Finding the Fourth Proportional to 638,574.12, 956,777.24 and 385,322.46

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Solution

The fourth proportional to 638,574.12, 956,777.24 and 385,322.46 is: 577,329.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,574.12 : 956,777.24 = 385,322.46 : x
  2. Step 2: Convert to fraction form
    638,574.12/956,777.24 = 385,322.46/x
  3. Step 3: Cross multiply
    638,574.12x = 956,777.24 × 385,322.46
  4. Step 4: Simplify right side
    638,574.12x = 368,667,759,788.81
  5. Step 5: Solve for x
    x = 368,667,759,788.81/638,574.12
  6. Step 6: Final answer
    x = 577,329.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.