Home / 899,188.39-1,240,865.33-491,281.47

Finding the Fourth Proportional to 899,188.39, 1,240,865.33 and 491,281.47

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Solution

The fourth proportional to 899,188.39, 1,240,865.33 and 491,281.47 is: 677,960.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,188.39 : 1,240,865.33 = 491,281.47 : x
  2. Step 2: Convert to fraction form
    899,188.39/1,240,865.33 = 491,281.47/x
  3. Step 3: Cross multiply
    899,188.39x = 1,240,865.33 × 491,281.47
  4. Step 4: Simplify right side
    899,188.39x = 609,614,140,938.03
  5. Step 5: Solve for x
    x = 609,614,140,938.03/899,188.39
  6. Step 6: Final answer
    x = 677,960.42

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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.