Home / 677,415.96-1,015,801.38-256,423.32

Finding the Fourth Proportional to 677,415.96, 1,015,801.38 and 256,423.32

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Solution

The fourth proportional to 677,415.96, 1,015,801.38 and 256,423.32 is: 384,512.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,415.96 : 1,015,801.38 = 256,423.32 : x
  2. Step 2: Convert to fraction form
    677,415.96/1,015,801.38 = 256,423.32/x
  3. Step 3: Cross multiply
    677,415.96x = 1,015,801.38 × 256,423.32
  4. Step 4: Simplify right side
    677,415.96x = 260,475,162,320.18
  5. Step 5: Solve for x
    x = 260,475,162,320.18/677,415.96
  6. Step 6: Final answer
    x = 384,512.88

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Double scale
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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.