Home / 917,367.12-1,265,931.90-509,495.22

Finding the Fourth Proportional to 917,367.12, 1,265,931.90 and 509,495.22

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Solution

The fourth proportional to 917,367.12, 1,265,931.90 and 509,495.22 is: 703,084.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,367.12 : 1,265,931.90 = 509,495.22 : x
  2. Step 2: Convert to fraction form
    917,367.12/1,265,931.90 = 509,495.22/x
  3. Step 3: Cross multiply
    917,367.12x = 1,265,931.90 × 509,495.22
  4. Step 4: Simplify right side
    917,367.12x = 644,986,251,895.52
  5. Step 5: Solve for x
    x = 644,986,251,895.52/917,367.12
  6. Step 6: Final answer
    x = 703,084.12

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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.