Home / 1,272,410.34-1,755,881.64-699,446.40

Finding the Fourth Proportional to 1,272,410.34, 1,755,881.64 and 699,446.40

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Solution

The fourth proportional to 1,272,410.34, 1,755,881.64 and 699,446.40 is: 965,211.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,410.34 : 1,755,881.64 = 699,446.40 : x
  2. Step 2: Convert to fraction form
    1,272,410.34/1,755,881.64 = 699,446.40/x
  3. Step 3: Cross multiply
    1,272,410.34x = 1,755,881.64 × 699,446.40
  4. Step 4: Simplify right side
    1,272,410.34x = 1,228,145,091,924.10
  5. Step 5: Solve for x
    x = 1,228,145,091,924.10/1,272,410.34
  6. Step 6: Final answer
    x = 965,211.50

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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.