Home / 1,294,887.40-1,786,952.10-721,963.24

Finding the Fourth Proportional to 1,294,887.40, 1,786,952.10 and 721,963.24

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Solution

The fourth proportional to 1,294,887.40, 1,786,952.10 and 721,963.24 is: 996,313.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,887.40 : 1,786,952.10 = 721,963.24 : x
  2. Step 2: Convert to fraction form
    1,294,887.40/1,786,952.10 = 721,963.24/x
  3. Step 3: Cross multiply
    1,294,887.40x = 1,786,952.10 × 721,963.24
  4. Step 4: Simplify right side
    1,294,887.40x = 1,290,113,727,840.80
  5. Step 5: Solve for x
    x = 1,290,113,727,840.80/1,294,887.40
  6. Step 6: Final answer
    x = 996,313.45

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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.