Home / 1,315,423.53-1,815,284.12-711,811.53

Finding the Fourth Proportional to 1,315,423.53, 1,815,284.12 and 711,811.53

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Solution

The fourth proportional to 1,315,423.53, 1,815,284.12 and 711,811.53 is: 982,299.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,423.53 : 1,815,284.12 = 711,811.53 : x
  2. Step 2: Convert to fraction form
    1,315,423.53/1,815,284.12 = 711,811.53/x
  3. Step 3: Cross multiply
    1,315,423.53x = 1,815,284.12 × 711,811.53
  4. Step 4: Simplify right side
    1,315,423.53x = 1,292,140,163,282.85
  5. Step 5: Solve for x
    x = 1,292,140,163,282.85/1,315,423.53
  6. Step 6: Final answer
    x = 982,299.72

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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.