Home / 1,264,715.86-1,745,263.70-721,026.74

Finding the Fourth Proportional to 1,264,715.86, 1,745,263.70 and 721,026.74

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Solution

The fourth proportional to 1,264,715.86, 1,745,263.70 and 721,026.74 is: 994,991.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,264,715.86 : 1,745,263.70 = 721,026.74 : x
  2. Step 2: Convert to fraction form
    1,264,715.86/1,745,263.70 = 721,026.74/x
  3. Step 3: Cross multiply
    1,264,715.86x = 1,745,263.70 × 721,026.74
  4. Step 4: Simplify right side
    1,264,715.86x = 1,258,381,792,446.20
  5. Step 5: Solve for x
    x = 1,258,381,792,446.20/1,264,715.86
  6. Step 6: Final answer
    x = 994,991.71

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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.