Home / 790,756.80-1,185,904.80-285,259.20

Finding the Fourth Proportional to 790,756.80, 1,185,904.80 and 285,259.20

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Solution

The fourth proportional to 790,756.80, 1,185,904.80 and 285,259.20 is: 427,805.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,756.80 : 1,185,904.80 = 285,259.20 : x
  2. Step 2: Convert to fraction form
    790,756.80/1,185,904.80 = 285,259.20/x
  3. Step 3: Cross multiply
    790,756.80x = 1,185,904.80 × 285,259.20
  4. Step 4: Simplify right side
    790,756.80x = 338,290,254,524.16
  5. Step 5: Solve for x
    x = 338,290,254,524.16/790,756.80
  6. Step 6: Final answer
    x = 427,805.69

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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.