Home / 874,107.60-1,310,999.40-242,890.80

Finding the Fourth Proportional to 874,107.60, 1,310,999.40 and 242,890.80

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Solution

The fourth proportional to 874,107.60, 1,310,999.40 and 242,890.80 is: 364,291.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,107.60 : 1,310,999.40 = 242,890.80 : x
  2. Step 2: Convert to fraction form
    874,107.60/1,310,999.40 = 242,890.80/x
  3. Step 3: Cross multiply
    874,107.60x = 1,310,999.40 × 242,890.80
  4. Step 4: Simplify right side
    874,107.60x = 318,429,693,065.52
  5. Step 5: Solve for x
    x = 318,429,693,065.52/874,107.60
  6. Step 6: Final answer
    x = 364,291.18

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1.5x scale

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.