Home / 1,445,410.60-2,168,115.90-1,390,298.20

Finding the Fourth Proportional to 1,445,410.60, 2,168,115.90 and 1,390,298.20

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Solution

The fourth proportional to 1,445,410.60, 2,168,115.90 and 1,390,298.20 is: 2,085,447.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,445,410.60 : 2,168,115.90 = 1,390,298.20 : x
  2. Step 2: Convert to fraction form
    1,445,410.60/2,168,115.90 = 1,390,298.20/x
  3. Step 3: Cross multiply
    1,445,410.60x = 2,168,115.90 × 1,390,298.20
  4. Step 4: Simplify right side
    1,445,410.60x = 3,014,327,633,161.38
  5. Step 5: Solve for x
    x = 3,014,327,633,161.38/1,445,410.60
  6. Step 6: Final answer
    x = 2,085,447.30

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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.