Home / 994,821.20-1,492,332.60-320,728.40

Finding the Fourth Proportional to 994,821.20, 1,492,332.60 and 320,728.40

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Solution

The fourth proportional to 994,821.20, 1,492,332.60 and 320,728.40 is: 481,125.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    994,821.20 : 1,492,332.60 = 320,728.40 : x
  2. Step 2: Convert to fraction form
    994,821.20/1,492,332.60 = 320,728.40/x
  3. Step 3: Cross multiply
    994,821.20x = 1,492,332.60 × 320,728.40
  4. Step 4: Simplify right side
    994,821.20x = 478,633,447,065.84
  5. Step 5: Solve for x
    x = 478,633,447,065.84/994,821.20
  6. Step 6: Final answer
    x = 481,125.10

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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.