Home / 478,723.11-660,639.23-263,864.03

Finding the Fourth Proportional to 478,723.11, 660,639.23 and 263,864.03

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Solution

The fourth proportional to 478,723.11, 660,639.23 and 263,864.03 is: 364,133.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,723.11 : 660,639.23 = 263,864.03 : x
  2. Step 2: Convert to fraction form
    478,723.11/660,639.23 = 263,864.03/x
  3. Step 3: Cross multiply
    478,723.11x = 660,639.23 × 263,864.03
  4. Step 4: Simplify right side
    478,723.11x = 174,318,927,209.57
  5. Step 5: Solve for x
    x = 174,318,927,209.57/478,723.11
  6. Step 6: Final answer
    x = 364,133.10

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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.