Home / 910,388.80-1,365,583.20-279,301.60

Finding the Fourth Proportional to 910,388.80, 1,365,583.20 and 279,301.60

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Solution

The fourth proportional to 910,388.80, 1,365,583.20 and 279,301.60 is: 418,952.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,388.80 : 1,365,583.20 = 279,301.60 : x
  2. Step 2: Convert to fraction form
    910,388.80/1,365,583.20 = 279,301.60/x
  3. Step 3: Cross multiply
    910,388.80x = 1,365,583.20 × 279,301.60
  4. Step 4: Simplify right side
    910,388.80x = 381,409,572,693.12
  5. Step 5: Solve for x
    x = 381,409,572,693.12/910,388.80
  6. Step 6: Final answer
    x = 418,952.40

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1.5x scale

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.