Home / 1,325,265.60-1,987,898.40-919,358.40

Finding the Fourth Proportional to 1,325,265.60, 1,987,898.40 and 919,358.40

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Solution

The fourth proportional to 1,325,265.60, 1,987,898.40 and 919,358.40 is: 1,379,037.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,265.60 : 1,987,898.40 = 919,358.40 : x
  2. Step 2: Convert to fraction form
    1,325,265.60/1,987,898.40 = 919,358.40/x
  3. Step 3: Cross multiply
    1,325,265.60x = 1,987,898.40 × 919,358.40
  4. Step 4: Simplify right side
    1,325,265.60x = 1,827,591,092,386.56
  5. Step 5: Solve for x
    x = 1,827,591,092,386.56/1,325,265.60
  6. Step 6: Final answer
    x = 1,379,037.60

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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.