Home / 923,409.60-1,385,114.40-812,817.60

Finding the Fourth Proportional to 923,409.60, 1,385,114.40 and 812,817.60

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Solution

The fourth proportional to 923,409.60, 1,385,114.40 and 812,817.60 is: 1,219,226.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,409.60 : 1,385,114.40 = 812,817.60 : x
  2. Step 2: Convert to fraction form
    923,409.60/1,385,114.40 = 812,817.60/x
  3. Step 3: Cross multiply
    923,409.60x = 1,385,114.40 × 812,817.60
  4. Step 4: Simplify right side
    923,409.60x = 1,125,845,362,333.44
  5. Step 5: Solve for x
    x = 1,125,845,362,333.44/923,409.60
  6. Step 6: Final answer
    x = 1,219,226.40

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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.