Home / 782,186.57-1,079,432.75-510,428.33

Finding the Fourth Proportional to 782,186.57, 1,079,432.75 and 510,428.33

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Solution

The fourth proportional to 782,186.57, 1,079,432.75 and 510,428.33 is: 704,401.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,186.57 : 1,079,432.75 = 510,428.33 : x
  2. Step 2: Convert to fraction form
    782,186.57/1,079,432.75 = 510,428.33/x
  3. Step 3: Cross multiply
    782,186.57x = 1,079,432.75 × 510,428.33
  4. Step 4: Simplify right side
    782,186.57x = 550,973,051,808.72
  5. Step 5: Solve for x
    x = 550,973,051,808.72/782,186.57
  6. Step 6: Final answer
    x = 704,401.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.