Home / 1,208,403.27-1,667,639.32-664,581.12

Finding the Fourth Proportional to 1,208,403.27, 1,667,639.32 and 664,581.12

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Solution

The fourth proportional to 1,208,403.27, 1,667,639.32 and 664,581.12 is: 917,145.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,403.27 : 1,667,639.32 = 664,581.12 : x
  2. Step 2: Convert to fraction form
    1,208,403.27/1,667,639.32 = 664,581.12/x
  3. Step 3: Cross multiply
    1,208,403.27x = 1,667,639.32 × 664,581.12
  4. Step 4: Simplify right side
    1,208,403.27x = 1,108,281,602,864.81
  5. Step 5: Solve for x
    x = 1,108,281,602,864.81/1,208,403.27
  6. Step 6: Final answer
    x = 917,145.48

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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.