Home / 917,485.60-1,376,228.40-681,289.60

Finding the Fourth Proportional to 917,485.60, 1,376,228.40 and 681,289.60

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Solution

The fourth proportional to 917,485.60, 1,376,228.40 and 681,289.60 is: 1,021,934.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,485.60 : 1,376,228.40 = 681,289.60 : x
  2. Step 2: Convert to fraction form
    917,485.60/1,376,228.40 = 681,289.60/x
  3. Step 3: Cross multiply
    917,485.60x = 1,376,228.40 × 681,289.60
  4. Step 4: Simplify right side
    917,485.60x = 937,610,096,144.64
  5. Step 5: Solve for x
    x = 937,610,096,144.64/917,485.60
  6. Step 6: Final answer
    x = 1,021,934.40

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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.