Home / 914,694.57-1,262,717.28-642,995.37

Finding the Fourth Proportional to 914,694.57, 1,262,717.28 and 642,995.37

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Solution

The fourth proportional to 914,694.57, 1,262,717.28 and 642,995.37 is: 887,642.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,694.57 : 1,262,717.28 = 642,995.37 : x
  2. Step 2: Convert to fraction form
    914,694.57/1,262,717.28 = 642,995.37/x
  3. Step 3: Cross multiply
    914,694.57x = 1,262,717.28 × 642,995.37
  4. Step 4: Simplify right side
    914,694.57x = 811,921,364,658.99
  5. Step 5: Solve for x
    x = 811,921,364,658.99/914,694.57
  6. Step 6: Final answer
    x = 887,642.05

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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.