Home / 672,785.61-1,009,178.42-461,783.85

Finding the Fourth Proportional to 672,785.61, 1,009,178.42 and 461,783.85

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Solution

The fourth proportional to 672,785.61, 1,009,178.42 and 461,783.85 is: 692,675.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,785.61 : 1,009,178.42 = 461,783.85 : x
  2. Step 2: Convert to fraction form
    672,785.61/1,009,178.42 = 461,783.85/x
  3. Step 3: Cross multiply
    672,785.61x = 1,009,178.42 × 461,783.85
  4. Step 4: Simplify right side
    672,785.61x = 466,022,296,124.52
  5. Step 5: Solve for x
    x = 466,022,296,124.52/672,785.61
  6. Step 6: Final answer
    x = 692,675.78

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Double scale
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Similar ratio
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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.