Home / 984,772.80-1,477,159.20-319,924.80

Finding the Fourth Proportional to 984,772.80, 1,477,159.20 and 319,924.80

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Solution

The fourth proportional to 984,772.80, 1,477,159.20 and 319,924.80 is: 479,887.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,772.80 : 1,477,159.20 = 319,924.80 : x
  2. Step 2: Convert to fraction form
    984,772.80/1,477,159.20 = 319,924.80/x
  3. Step 3: Cross multiply
    984,772.80x = 1,477,159.20 × 319,924.80
  4. Step 4: Simplify right side
    984,772.80x = 472,579,861,628.16
  5. Step 5: Solve for x
    x = 472,579,861,628.16/984,772.80
  6. Step 6: Final answer
    x = 479,887.20

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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.