Home / 1,490,728.60-2,057,160.54-828,438.22

Finding the Fourth Proportional to 1,490,728.60, 2,057,160.54 and 828,438.22

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Solution

The fourth proportional to 1,490,728.60, 2,057,160.54 and 828,438.22 is: 1,143,219.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,728.60 : 2,057,160.54 = 828,438.22 : x
  2. Step 2: Convert to fraction form
    1,490,728.60/2,057,160.54 = 828,438.22/x
  3. Step 3: Cross multiply
    1,490,728.60x = 2,057,160.54 × 828,438.22
  4. Step 4: Simplify right side
    1,490,728.60x = 1,704,230,416,011.84
  5. Step 5: Solve for x
    x = 1,704,230,416,011.84/1,490,728.60
  6. Step 6: Final answer
    x = 1,143,219.78

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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.