Home / 1,315,457.72-1,815,332.56-711,845.72

Finding the Fourth Proportional to 1,315,457.72, 1,815,332.56 and 711,845.72

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Solution

The fourth proportional to 1,315,457.72, 1,815,332.56 and 711,845.72 is: 982,347.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,457.72 : 1,815,332.56 = 711,845.72 : x
  2. Step 2: Convert to fraction form
    1,315,457.72/1,815,332.56 = 711,845.72/x
  3. Step 3: Cross multiply
    1,315,457.72x = 1,815,332.56 × 711,845.72
  4. Step 4: Simplify right side
    1,315,457.72x = 1,292,236,713,168.00
  5. Step 5: Solve for x
    x = 1,292,236,713,168.00/1,315,457.72
  6. Step 6: Final answer
    x = 982,347.58

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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.