Home / 780,127.66-1,170,107.65-529,019.97

Finding the Fourth Proportional to 780,127.66, 1,170,107.65 and 529,019.97

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Solution

The fourth proportional to 780,127.66, 1,170,107.65 and 529,019.97 is: 793,473.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,127.66 : 1,170,107.65 = 529,019.97 : x
  2. Step 2: Convert to fraction form
    780,127.66/1,170,107.65 = 529,019.97/x
  3. Step 3: Cross multiply
    780,127.66x = 1,170,107.65 × 529,019.97
  4. Step 4: Simplify right side
    780,127.66x = 619,010,313,899.77
  5. Step 5: Solve for x
    x = 619,010,313,899.77/780,127.66
  6. Step 6: Final answer
    x = 793,473.10

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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.