Home / 759,980.64-1,048,734.96-415,809.12

Finding the Fourth Proportional to 759,980.64, 1,048,734.96 and 415,809.12

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Solution

The fourth proportional to 759,980.64, 1,048,734.96 and 415,809.12 is: 573,795.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,980.64 : 1,048,734.96 = 415,809.12 : x
  2. Step 2: Convert to fraction form
    759,980.64/1,048,734.96 = 415,809.12/x
  3. Step 3: Cross multiply
    759,980.64x = 1,048,734.96 × 415,809.12
  4. Step 4: Simplify right side
    759,980.64x = 436,073,560,830.84
  5. Step 5: Solve for x
    x = 436,073,560,830.84/759,980.64
  6. Step 6: Final answer
    x = 573,795.62

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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.