Home / 813,999.60-1,220,999.40-223,023.60

Finding the Fourth Proportional to 813,999.60, 1,220,999.40 and 223,023.60

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Solution

The fourth proportional to 813,999.60, 1,220,999.40 and 223,023.60 is: 334,535.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,999.60 : 1,220,999.40 = 223,023.60 : x
  2. Step 2: Convert to fraction form
    813,999.60/1,220,999.40 = 223,023.60/x
  3. Step 3: Cross multiply
    813,999.60x = 1,220,999.40 × 223,023.60
  4. Step 4: Simplify right side
    813,999.60x = 272,311,681,785.84
  5. Step 5: Solve for x
    x = 272,311,681,785.84/813,999.60
  6. Step 6: Final answer
    x = 334,535.40

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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.