Home / 984,129.40-1,476,194.10-319,281.40

Finding the Fourth Proportional to 984,129.40, 1,476,194.10 and 319,281.40

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Solution

The fourth proportional to 984,129.40, 1,476,194.10 and 319,281.40 is: 478,922.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,129.40 : 1,476,194.10 = 319,281.40 : x
  2. Step 2: Convert to fraction form
    984,129.40/1,476,194.10 = 319,281.40/x
  3. Step 3: Cross multiply
    984,129.40x = 1,476,194.10 × 319,281.40
  4. Step 4: Simplify right side
    984,129.40x = 471,321,318,919.74
  5. Step 5: Solve for x
    x = 471,321,318,919.74/984,129.40
  6. Step 6: Final answer
    x = 478,922.10

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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.