Home / 1,291,505.45-1,937,276.80-450,057.20

Finding the Fourth Proportional to 1,291,505.45, 1,937,276.80 and 450,057.20

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Solution

The fourth proportional to 1,291,505.45, 1,937,276.80 and 450,057.20 is: 675,092.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,505.45 : 1,937,276.80 = 450,057.20 : x
  2. Step 2: Convert to fraction form
    1,291,505.45/1,937,276.80 = 450,057.20/x
  3. Step 3: Cross multiply
    1,291,505.45x = 1,937,276.80 × 450,057.20
  4. Step 4: Simplify right side
    1,291,505.45x = 871,885,361,421.43
  5. Step 5: Solve for x
    x = 871,885,361,421.43/1,291,505.45
  6. Step 6: Final answer
    x = 675,092.28

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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.