Home / 1,500,172.60-2,070,015.58-911,165.75

Finding the Fourth Proportional to 1,500,172.60, 2,070,015.58 and 911,165.75

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Solution

The fourth proportional to 1,500,172.60, 2,070,015.58 and 911,165.75 is: 1,257,273.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,172.60 : 2,070,015.58 = 911,165.75 : x
  2. Step 2: Convert to fraction form
    1,500,172.60/2,070,015.58 = 911,165.75/x
  3. Step 3: Cross multiply
    1,500,172.60x = 2,070,015.58 × 911,165.75
  4. Step 4: Simplify right side
    1,500,172.60x = 1,886,127,298,462.39
  5. Step 5: Solve for x
    x = 1,886,127,298,462.39/1,500,172.60
  6. Step 6: Final answer
    x = 1,257,273.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.