Home / 1,315,440.54-1,815,306.93-711,828.54

Finding the Fourth Proportional to 1,315,440.54, 1,815,306.93 and 711,828.54

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Solution

The fourth proportional to 1,315,440.54, 1,815,306.93 and 711,828.54 is: 982,322.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,440.54 : 1,815,306.93 = 711,828.54 : x
  2. Step 2: Convert to fraction form
    1,315,440.54/1,815,306.93 = 711,828.54/x
  3. Step 3: Cross multiply
    1,315,440.54x = 1,815,306.93 × 711,828.54
  4. Step 4: Simplify right side
    1,315,440.54x = 1,292,187,281,633.78
  5. Step 5: Solve for x
    x = 1,292,187,281,633.78/1,315,440.54
  6. Step 6: Final answer
    x = 982,322.84

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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.