Home / 729,390.64-1,094,574.54-256,077.40

Finding the Fourth Proportional to 729,390.64, 1,094,574.54 and 256,077.40

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Solution

The fourth proportional to 729,390.64, 1,094,574.54 and 256,077.40 is: 384,287.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,390.64 : 1,094,574.54 = 256,077.40 : x
  2. Step 2: Convert to fraction form
    729,390.64/1,094,574.54 = 256,077.40/x
  3. Step 3: Cross multiply
    729,390.64x = 1,094,574.54 × 256,077.40
  4. Step 4: Simplify right side
    729,390.64x = 280,295,802,309.40
  5. Step 5: Solve for x
    x = 280,295,802,309.40/729,390.64
  6. Step 6: Final answer
    x = 384,287.63

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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.