Home / 899,188.68-1,240,865.92-491,281.76

Finding the Fourth Proportional to 899,188.68, 1,240,865.92 and 491,281.76

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Solution

The fourth proportional to 899,188.68, 1,240,865.92 and 491,281.76 is: 677,960.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,188.68 : 1,240,865.92 = 491,281.76 : x
  2. Step 2: Convert to fraction form
    899,188.68/1,240,865.92 = 491,281.76/x
  3. Step 3: Cross multiply
    899,188.68x = 1,240,865.92 × 491,281.76
  4. Step 4: Simplify right side
    899,188.68x = 609,614,793,101.62
  5. Step 5: Solve for x
    x = 609,614,793,101.62/899,188.68
  6. Step 6: Final answer
    x = 677,960.93

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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.