Home / 874,939.60-1,312,247.40-243,722.80

Finding the Fourth Proportional to 874,939.60, 1,312,247.40 and 243,722.80

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Solution

The fourth proportional to 874,939.60, 1,312,247.40 and 243,722.80 is: 365,539.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,939.60 : 1,312,247.40 = 243,722.80 : x
  2. Step 2: Convert to fraction form
    874,939.60/1,312,247.40 = 243,722.80/x
  3. Step 3: Cross multiply
    874,939.60x = 1,312,247.40 × 243,722.80
  4. Step 4: Simplify right side
    874,939.60x = 319,824,610,620.72
  5. Step 5: Solve for x
    x = 319,824,610,620.72/874,939.60
  6. Step 6: Final answer
    x = 365,539.07

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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.