Home / 917,222.19-1,265,846.84-509,403.76

Finding the Fourth Proportional to 917,222.19, 1,265,846.84 and 509,403.76

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Solution

The fourth proportional to 917,222.19, 1,265,846.84 and 509,403.76 is: 703,021.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,222.19 : 1,265,846.84 = 509,403.76 : x
  2. Step 2: Convert to fraction form
    917,222.19/1,265,846.84 = 509,403.76/x
  3. Step 3: Cross multiply
    917,222.19x = 1,265,846.84 × 509,403.76
  4. Step 4: Simplify right side
    917,222.19x = 644,827,134,168.48
  5. Step 5: Solve for x
    x = 644,827,134,168.48/917,222.19
  6. Step 6: Final answer
    x = 703,021.73

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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.