Home / 782,808.65-1,080,287.49-456,114.59

Finding the Fourth Proportional to 782,808.65, 1,080,287.49 and 456,114.59

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Solution

The fourth proportional to 782,808.65, 1,080,287.49 and 456,114.59 is: 629,444.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,808.65 : 1,080,287.49 = 456,114.59 : x
  2. Step 2: Convert to fraction form
    782,808.65/1,080,287.49 = 456,114.59/x
  3. Step 3: Cross multiply
    782,808.65x = 1,080,287.49 × 456,114.59
  4. Step 4: Simplify right side
    782,808.65x = 492,734,889,994.63
  5. Step 5: Solve for x
    x = 492,734,889,994.63/782,808.65
  6. Step 6: Final answer
    x = 629,444.87

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Double scale
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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.