Home / 782,276.46-1,079,504.16-480,412.14

Finding the Fourth Proportional to 782,276.46, 1,079,504.16 and 480,412.14

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Solution

The fourth proportional to 782,276.46, 1,079,504.16 and 480,412.14 is: 662,945.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,276.46 : 1,079,504.16 = 480,412.14 : x
  2. Step 2: Convert to fraction form
    782,276.46/1,079,504.16 = 480,412.14/x
  3. Step 3: Cross multiply
    782,276.46x = 1,079,504.16 × 480,412.14
  4. Step 4: Simplify right side
    782,276.46x = 518,606,903,644.50
  5. Step 5: Solve for x
    x = 518,606,903,644.50/782,276.46
  6. Step 6: Final answer
    x = 662,945.81

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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.