Home / 874,137.60-1,311,206.40-542,361.60

Finding the Fourth Proportional to 874,137.60, 1,311,206.40 and 542,361.60

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Solution

The fourth proportional to 874,137.60, 1,311,206.40 and 542,361.60 is: 813,542.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,137.60 : 1,311,206.40 = 542,361.60 : x
  2. Step 2: Convert to fraction form
    874,137.60/1,311,206.40 = 542,361.60/x
  3. Step 3: Cross multiply
    874,137.60x = 1,311,206.40 × 542,361.60
  4. Step 4: Simplify right side
    874,137.60x = 711,148,001,034.24
  5. Step 5: Solve for x
    x = 711,148,001,034.24/874,137.60
  6. Step 6: Final answer
    x = 813,542.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.