Home / 1,420,623.96-2,130,200.10-521,833.56

Finding the Fourth Proportional to 1,420,623.96, 2,130,200.10 and 521,833.56

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Solution

The fourth proportional to 1,420,623.96, 2,130,200.10 and 521,833.56 is: 782,480.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,623.96 : 2,130,200.10 = 521,833.56 : x
  2. Step 2: Convert to fraction form
    1,420,623.96/2,130,200.10 = 521,833.56/x
  3. Step 3: Cross multiply
    1,420,623.96x = 2,130,200.10 × 521,833.56
  4. Step 4: Simplify right side
    1,420,623.96x = 1,111,609,901,695.36
  5. Step 5: Solve for x
    x = 1,111,609,901,695.36/1,420,623.96
  6. Step 6: Final answer
    x = 782,480.05

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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.