Home / 917,366.62-1,265,931.21-509,494.72

Finding the Fourth Proportional to 917,366.62, 1,265,931.21 and 509,494.72

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Solution

The fourth proportional to 917,366.62, 1,265,931.21 and 509,494.72 is: 703,083.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,366.62 : 1,265,931.21 = 509,494.72 : x
  2. Step 2: Convert to fraction form
    917,366.62/1,265,931.21 = 509,494.72/x
  3. Step 3: Cross multiply
    917,366.62x = 1,265,931.21 × 509,494.72
  4. Step 4: Simplify right side
    917,366.62x = 644,985,267,378.21
  5. Step 5: Solve for x
    x = 644,985,267,378.21/917,366.62
  6. Step 6: Final answer
    x = 703,083.43

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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.