Home / 521,935.08-720,226.44-289,368.24

Finding the Fourth Proportional to 521,935.08, 720,226.44 and 289,368.24

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Solution

The fourth proportional to 521,935.08, 720,226.44 and 289,368.24 is: 399,303.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,935.08 : 720,226.44 = 289,368.24 : x
  2. Step 2: Convert to fraction form
    521,935.08/720,226.44 = 289,368.24/x
  3. Step 3: Cross multiply
    521,935.08x = 720,226.44 × 289,368.24
  4. Step 4: Simplify right side
    521,935.08x = 208,410,657,344.27
  5. Step 5: Solve for x
    x = 208,410,657,344.27/521,935.08
  6. Step 6: Final answer
    x = 399,303.79

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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.