Home / 779,980.80-1,170,009.60-406,732.80

Finding the Fourth Proportional to 779,980.80, 1,170,009.60 and 406,732.80

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Solution

The fourth proportional to 779,980.80, 1,170,009.60 and 406,732.80 is: 610,119.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,980.80 : 1,170,009.60 = 406,732.80 : x
  2. Step 2: Convert to fraction form
    779,980.80/1,170,009.60 = 406,732.80/x
  3. Step 3: Cross multiply
    779,980.80x = 1,170,009.60 × 406,732.80
  4. Step 4: Simplify right side
    779,980.80x = 475,881,280,634.88
  5. Step 5: Solve for x
    x = 475,881,280,634.88/779,980.80
  6. Step 6: Final answer
    x = 610,119.22

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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.