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Finding the Fourth Proportional to 788,509.60, 1,181,403.60 and 366,920.80

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Solution

The fourth proportional to 788,509.60, 1,181,403.60 and 366,920.80 is: 549,747.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,509.60 : 1,181,403.60 = 366,920.80 : x
  2. Step 2: Convert to fraction form
    788,509.60/1,181,403.60 = 366,920.80/x
  3. Step 3: Cross multiply
    788,509.60x = 1,181,403.60 × 366,920.80
  4. Step 4: Simplify right side
    788,509.60x = 433,481,554,034.88
  5. Step 5: Solve for x
    x = 433,481,554,034.88/788,509.60
  6. Step 6: Final answer
    x = 549,747.97

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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.