Home / 817,015.82-1,127,454.78-454,429.45

Finding the Fourth Proportional to 817,015.82, 1,127,454.78 and 454,429.45

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Solution

The fourth proportional to 817,015.82, 1,127,454.78 and 454,429.45 is: 627,097.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,015.82 : 1,127,454.78 = 454,429.45 : x
  2. Step 2: Convert to fraction form
    817,015.82/1,127,454.78 = 454,429.45/x
  3. Step 3: Cross multiply
    817,015.82x = 1,127,454.78 × 454,429.45
  4. Step 4: Simplify right side
    817,015.82x = 512,348,652,346.77
  5. Step 5: Solve for x
    x = 512,348,652,346.77/817,015.82
  6. Step 6: Final answer
    x = 627,097.59

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1.5x scale

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.