Home / 917,997.60-1,376,996.40-865,509.60

Finding the Fourth Proportional to 917,997.60, 1,376,996.40 and 865,509.60

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Solution

The fourth proportional to 917,997.60, 1,376,996.40 and 865,509.60 is: 1,298,264.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,997.60 : 1,376,996.40 = 865,509.60 : x
  2. Step 2: Convert to fraction form
    917,997.60/1,376,996.40 = 865,509.60/x
  3. Step 3: Cross multiply
    917,997.60x = 1,376,996.40 × 865,509.60
  4. Step 4: Simplify right side
    917,997.60x = 1,191,803,603,365.44
  5. Step 5: Solve for x
    x = 1,191,803,603,365.44/917,997.60
  6. Step 6: Final answer
    x = 1,298,264.40

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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.