Home / 1,380,406.96-2,070,819.42-433,688.68

Finding the Fourth Proportional to 1,380,406.96, 2,070,819.42 and 433,688.68

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Solution

The fourth proportional to 1,380,406.96, 2,070,819.42 and 433,688.68 is: 650,598.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,406.96 : 2,070,819.42 = 433,688.68 : x
  2. Step 2: Convert to fraction form
    1,380,406.96/2,070,819.42 = 433,688.68/x
  3. Step 3: Cross multiply
    1,380,406.96x = 2,070,819.42 × 433,688.68
  4. Step 4: Simplify right side
    1,380,406.96x = 898,090,940,778.17
  5. Step 5: Solve for x
    x = 898,090,940,778.17/1,380,406.96
  6. Step 6: Final answer
    x = 650,598.68

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1.5x scale

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.