Home / 917,216.10-1,264,867.38-712,906.56

Finding the Fourth Proportional to 917,216.10, 1,264,867.38 and 712,906.56

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Solution

The fourth proportional to 917,216.10, 1,264,867.38 and 712,906.56 is: 983,118.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,216.10 : 1,264,867.38 = 712,906.56 : x
  2. Step 2: Convert to fraction form
    917,216.10/1,264,867.38 = 712,906.56/x
  3. Step 3: Cross multiply
    917,216.10x = 1,264,867.38 × 712,906.56
  4. Step 4: Simplify right side
    917,216.10x = 901,732,252,732.01
  5. Step 5: Solve for x
    x = 901,732,252,732.01/917,216.10
  6. Step 6: Final answer
    x = 983,118.65

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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.