Home / 910,206.64-1,365,258.84-279,118.72

Finding the Fourth Proportional to 910,206.64, 1,365,258.84 and 279,118.72

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Solution

The fourth proportional to 910,206.64, 1,365,258.84 and 279,118.72 is: 418,662.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,206.64 : 1,365,258.84 = 279,118.72 : x
  2. Step 2: Convert to fraction form
    910,206.64/1,365,258.84 = 279,118.72/x
  3. Step 3: Cross multiply
    910,206.64x = 1,365,258.84 × 279,118.72
  4. Step 4: Simplify right side
    910,206.64x = 381,069,299,889.49
  5. Step 5: Solve for x
    x = 381,069,299,889.49/910,206.64
  6. Step 6: Final answer
    x = 418,662.40

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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.