Home / 984,124.80-1,476,187.20-319,276.80

Finding the Fourth Proportional to 984,124.80, 1,476,187.20 and 319,276.80

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Solution

The fourth proportional to 984,124.80, 1,476,187.20 and 319,276.80 is: 478,915.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,124.80 : 1,476,187.20 = 319,276.80 : x
  2. Step 2: Convert to fraction form
    984,124.80/1,476,187.20 = 319,276.80/x
  3. Step 3: Cross multiply
    984,124.80x = 1,476,187.20 × 319,276.80
  4. Step 4: Simplify right side
    984,124.80x = 471,312,325,416.96
  5. Step 5: Solve for x
    x = 471,312,325,416.96/984,124.80
  6. Step 6: Final answer
    x = 478,915.20

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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.