Home / 714,981.12-1,072,923.66-399,644.88

Finding the Fourth Proportional to 714,981.12, 1,072,923.66 and 399,644.88

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Solution

The fourth proportional to 714,981.12, 1,072,923.66 and 399,644.88 is: 599,719.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,981.12 : 1,072,923.66 = 399,644.88 : x
  2. Step 2: Convert to fraction form
    714,981.12/1,072,923.66 = 399,644.88/x
  3. Step 3: Cross multiply
    714,981.12x = 1,072,923.66 × 399,644.88
  4. Step 4: Simplify right side
    714,981.12x = 428,788,447,349.86
  5. Step 5: Solve for x
    x = 428,788,447,349.86/714,981.12
  6. Step 6: Final answer
    x = 599,719.96

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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.