Home / 1,121,154.60-1,681,479.72-322,258.08

Finding the Fourth Proportional to 1,121,154.60, 1,681,479.72 and 322,258.08

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Solution

The fourth proportional to 1,121,154.60, 1,681,479.72 and 322,258.08 is: 483,314.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,154.60 : 1,681,479.72 = 322,258.08 : x
  2. Step 2: Convert to fraction form
    1,121,154.60/1,681,479.72 = 322,258.08/x
  3. Step 3: Cross multiply
    1,121,154.60x = 1,681,479.72 × 322,258.08
  4. Step 4: Simplify right side
    1,121,154.60x = 541,870,426,126.14
  5. Step 5: Solve for x
    x = 541,870,426,126.14/1,121,154.60
  6. Step 6: Final answer
    x = 483,314.63

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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.