Home / 917,362.40-1,376,043.60-728,405.60

Finding the Fourth Proportional to 917,362.40, 1,376,043.60 and 728,405.60

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Solution

The fourth proportional to 917,362.40, 1,376,043.60 and 728,405.60 is: 1,092,608.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,362.40 : 1,376,043.60 = 728,405.60 : x
  2. Step 2: Convert to fraction form
    917,362.40/1,376,043.60 = 728,405.60/x
  3. Step 3: Cross multiply
    917,362.40x = 1,376,043.60 × 728,405.60
  4. Step 4: Simplify right side
    917,362.40x = 1,002,317,864,084.16
  5. Step 5: Solve for x
    x = 1,002,317,864,084.16/917,362.40
  6. Step 6: Final answer
    x = 1,092,608.40

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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.