Home / 1,315,582.74-1,815,500.61-711,970.74

Finding the Fourth Proportional to 1,315,582.74, 1,815,500.61 and 711,970.74

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Solution

The fourth proportional to 1,315,582.74, 1,815,500.61 and 711,970.74 is: 982,517.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,582.74 : 1,815,500.61 = 711,970.74 : x
  2. Step 2: Convert to fraction form
    1,315,582.74/1,815,500.61 = 711,970.74/x
  3. Step 3: Cross multiply
    1,315,582.74x = 1,815,500.61 × 711,970.74
  4. Step 4: Simplify right side
    1,315,582.74x = 1,292,583,312,772.15
  5. Step 5: Solve for x
    x = 1,292,583,312,772.15/1,315,582.74
  6. Step 6: Final answer
    x = 982,517.69

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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.