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Finding the Fourth Proportional to 490,854.40, 736,281.60 and 277,403.20

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Solution

The fourth proportional to 490,854.40, 736,281.60 and 277,403.20 is: 416,104.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,854.40 : 736,281.60 = 277,403.20 : x
  2. Step 2: Convert to fraction form
    490,854.40/736,281.60 = 277,403.20/x
  3. Step 3: Cross multiply
    490,854.40x = 736,281.60 × 277,403.20
  4. Step 4: Simplify right side
    490,854.40x = 204,246,871,941.12
  5. Step 5: Solve for x
    x = 204,246,871,941.12/490,854.40
  6. Step 6: Final answer
    x = 416,104.80

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Similar ratio
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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.