Home / 853,980.12-1,280,923.98-433,245.06

Finding the Fourth Proportional to 853,980.12, 1,280,923.98 and 433,245.06

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Solution

The fourth proportional to 853,980.12, 1,280,923.98 and 433,245.06 is: 649,844.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,980.12 : 1,280,923.98 = 433,245.06 : x
  2. Step 2: Convert to fraction form
    853,980.12/1,280,923.98 = 433,245.06/x
  3. Step 3: Cross multiply
    853,980.12x = 1,280,923.98 × 433,245.06
  4. Step 4: Simplify right side
    853,980.12x = 554,953,986,570.54
  5. Step 5: Solve for x
    x = 554,953,986,570.54/853,980.12
  6. Step 6: Final answer
    x = 649,844.15

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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.