Home / 1,255,214.39-1,732,159.45-711,400.43

Finding the Fourth Proportional to 1,255,214.39, 1,732,159.45 and 711,400.43

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Solution

The fourth proportional to 1,255,214.39, 1,732,159.45 and 711,400.43 is: 981,711.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,214.39 : 1,732,159.45 = 711,400.43 : x
  2. Step 2: Convert to fraction form
    1,255,214.39/1,732,159.45 = 711,400.43/x
  3. Step 3: Cross multiply
    1,255,214.39x = 1,732,159.45 × 711,400.43
  4. Step 4: Simplify right side
    1,255,214.39x = 1,232,258,977,558.56
  5. Step 5: Solve for x
    x = 1,232,258,977,558.56/1,255,214.39
  6. Step 6: Final answer
    x = 981,711.96

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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.