Home / 917,133.07-1,265,581.93-509,213.83

Finding the Fourth Proportional to 917,133.07, 1,265,581.93 and 509,213.83

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Solution

The fourth proportional to 917,133.07, 1,265,581.93 and 509,213.83 is: 702,680.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,133.07 : 1,265,581.93 = 509,213.83 : x
  2. Step 2: Convert to fraction form
    917,133.07/1,265,581.93 = 509,213.83/x
  3. Step 3: Cross multiply
    917,133.07x = 1,265,581.93 × 509,213.83
  4. Step 4: Simplify right side
    917,133.07x = 644,451,821,754.09
  5. Step 5: Solve for x
    x = 644,451,821,754.09/917,133.07
  6. Step 6: Final answer
    x = 702,680.82

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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.